94-673: The River Thames ( / t ɛ m z / TEMZ ), known alternatively in parts as the River Isis , is a river that flows through southern England including London . At 215 miles (346 km), it is the longest river entirely in England and the second-longest in the United Kingdom , after the River Severn . The river rises at Thames Head in Gloucestershire and flows into
188-690: A language family native to the overwhelming majority of Europe , the Iranian plateau , and the northern Indian subcontinent . Some European languages of this family— English , French , Portuguese , Russian , Dutch , and Spanish —have expanded through colonialism in the modern period and are now spoken across several continents. The Indo-European family is divided into several branches or sub-families, of which there are eight groups with languages still alive today: Albanian , Armenian , Balto-Slavic , Celtic , Germanic , Hellenic , Indo-Iranian , and Italic ; another nine subdivisions are now extinct . Today,
282-663: A common ancestor, Proto-Indo-European . Membership in the various branches, groups, and subgroups of Indo-European is also genealogical, but here the defining factors are shared innovations among various languages, suggesting a common ancestor that split off from other Indo-European groups. For example, what makes the Germanic languages a branch of Indo-European is that much of their structure and phonology can be stated in rules that apply to all of them. Many of their common features are presumed innovations that took place in Proto-Germanic ,
376-551: A confirmation of de Saussure's theory. The various subgroups of the Indo-European language family include ten major branches, listed below in alphabetical order: In addition to the classical ten branches listed above, several extinct and little-known languages and language-groups have existed or are proposed to have existed: Membership of languages in the Indo-European language family is determined by genealogical relationships, meaning that all members are presumed descendants of
470-794: A diplomatic mission and noted a few similarities between words in German and in Persian. Gaston Coeurdoux and others made observations of the same type. Coeurdoux made a thorough comparison of Sanskrit, Latin, and Greek conjugations in the late 1760s to suggest a relationship among them. Meanwhile, Mikhail Lomonosov compared different language groups, including Slavic, Baltic (" Kurlandic "), Iranian (" Medic "), Finnish , Chinese , "Hottentot" ( Khoekhoe ), and others, noting that related languages (including Latin, Greek, German, and Russian) must have separated in antiquity from common ancestors. The hypothesis reappeared in 1786 when Sir William Jones first lectured on
564-458: A linguistic area). In a similar vein, there are many similar innovations in Germanic and Balto-Slavic that are far more likely areal features than traceable to a common proto-language, such as the uniform development of a high vowel (* u in the case of Germanic, * i/u in the case of Baltic and Slavic) before the PIE syllabic resonants * ṛ, *ḷ, *ṃ, *ṇ , unique to these two groups among IE languages, which
658-498: A rise and fall of 23 ft (7 m). From Oxford to the estuary, the Thames drops by 55 metres (180 ft). Running through some of the drier parts of mainland Britain and heavily abstracted for drinking water, the Thames' discharge is low considering its length and breadth: the Severn has a discharge almost twice as large on average despite having a smaller drainage basin . In Scotland ,
752-616: A summer venue for organised swimming, which is prohibited on safety grounds in a stretch centred on Central London . After the river took its present-day course, many of the banks of the Thames Estuary and the Thames Valley in London were partly covered in marshland , as was the adjoining Lower Lea Valley . Streams and rivers like the River Lea , Tyburn Brook and Bollo Brook drained into
846-466: Is a landmark on the Boat Race course, while Glover's Island forms the centre of a view from Richmond Hill . Islands of historical interest include Magna Carta Island at Runnymede , Fry's Island at Reading, and Pharaoh's Island near Shepperton. In more recent times Platts Eyot at Hampton was the place where Motor Torpedo Boats (MTB)s were built, Tagg's Island near Molesey was associated with
940-716: Is an alternative name for the River Thames , used from its source in the Cotswolds until it is joined by the River Thame at Dorchester in Oxfordshire . Notably, the Isis flows through Oxford and has given its name to several institutions and products of the city. The modern form of the name, first recorded c.1540, relates to the Egyptian goddess Isis . The deity was venerated throughout
1034-399: Is an important water source, especially in the drier months, so maintaining its quality and quantity is extremely important. Groundwater is vulnerable to surface pollution, especially in highly urbanised areas. Brooks, canals and rivers, within an area of 3,842 sq mi (9,951 km), combine to form 38 main tributaries feeding the Thames between its source and Teddington Lock . This
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#17328377423601128-627: Is believed that Tamesubugus' name was derived from that of the river. Tamese was referred to as a place, not a river in the Ravenna Cosmography ( c. AD 700 ). The river's name has always been pronounced with a simple t /t/ ; the Middle English spelling was typically Temese and the Brittonic form Tamesis . A similar spelling from 1210, "Tamisiam" (the accusative case of "Tamisia"; see Kingston upon Thames § Early history ),
1222-510: Is cited to have been radically non-treelike. Specialists have postulated the existence of higher-order subgroups such as Italo-Celtic , Graeco-Armenian , Graeco-Aryan or Graeco-Armeno-Aryan, and Balto-Slavo-Germanic. However, unlike the ten traditional branches, these are all controversial to a greater or lesser degree. The Italo-Celtic subgroup was at one point uncontroversial, considered by Antoine Meillet to be even better established than Balto-Slavic. The main lines of evidence included
1316-591: Is formed for much of its length for shipping and supplies: through the Port of London for international trade, internally along its length and by its connection to the British canal system. The river's position has put it at the centre of many events in British history, leading to it being described by John Burns as "liquid history". Two broad canals link the river to other rivers: the Kennet and Avon Canal ( Reading to Bath ) and
1410-628: Is found in Magna Carta . The Thames through Oxford is sometimes called the Isis . Historically, and especially in Victorian times, gazetteers and cartographers insisted that the entire river was correctly named the Isis from its source down to Dorchester on Thames and that only from this point, where the river meets the Thame and becomes the "Thame-isis" (supposedly subsequently abbreviated to Thames) should it be so called. Ordnance Survey maps still label
1504-531: Is in agreement with the wave model. The Balkan sprachbund even features areal convergence among members of very different branches. An extension to the Ringe - Warnow model of language evolution suggests that early IE had featured limited contact between distinct lineages, with only the Germanic subfamily exhibiting a less treelike behaviour as it acquired some characteristics from neighbours early in its evolution. The internal diversification of especially West Germanic
1598-403: Is prone to flooding at exceptional tides, but has nevertheless been inhabited since Roman times. The usually quoted source of the Thames is at Thames Head (at grid reference ST980994 ). This is about 1.5 mi (2.4 km) north of the village of Kemble in southern Gloucestershire , near the town of Cirencester , in the Cotswolds . However, Seven Springs near Cheltenham , where
1692-452: Is responsible for managing the flow of water to help prevent and mitigate flooding, and providing for navigation: the volume and speed of water downstream is managed by adjusting the sluices at each of the weirs and, at peak high water, levels are generally dissipated over preferred flood plains adjacent to the river. Occasionally, flooding of inhabited areas is unavoidable and the agency issues flood warnings. Due to stiff penalties applicable on
1786-898: Is shared by many other river names in Britain, such as the River Tamar at the border of Devon and Cornwall , several rivers named Tame in the Midlands and North Yorkshire , the Tavy on Dartmoor , the Team of the North East, the Teifi and Teme of Wales , the Teviot in the Scottish Borders and a Thames tributary, the Thame . Kenneth H. Jackson proposed that the name of
1880-403: Is the usual tidal limit ; however, high spring tides can raise the head water level in the reach above Teddington and can occasionally reverse the river flow for a short time. In these circumstances, tidal effects can be observed upstream to the next lock beside Molesey weir , which is visible from the towpath and bridge beside Hampton Court Palace . Before Teddington Lock was built in 1810–12,
1974-768: The Berwyn Mountains in North Wales . About 450,000 years ago, in the most extreme Ice Age of the Pleistocene , the Anglian , the furthest southern extent of the ice sheet reached Hornchurch in east London, the Vale of St Albans, and the Finchley Gap . It dammed the river in Hertfordshire , resulting in the formation of large ice lakes, which eventually burst their banks and caused
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#17328377423602068-523: The British Geological Survey from the banks of the tidal River Thames contain geochemical information and fossils which provide a 10,000-year record of sea-level change. Combined, this and other studies suggest that the Thames sea-level has risen more than 30 m during the Holocene at a rate of around 5–6 mm per year from 10,000 to 6,000 years ago. The rise of sea level dramatically reduced when
2162-559: The Churn (which feeds into the Thames near Cricklade ) rises, is also sometimes quoted as the Thames' source, as this location is farthest from the mouth and adds some 14 mi (23 km) to the river's length. At Seven Springs above the source is a stone with the Latin hexameter inscription "Hic tuus o Tamesine pater septemgeminus fons", which means "Here, O Father Thames, [is] your sevenfold source". The springs at Seven Springs flow throughout
2256-624: The Danube , Istros . It is possible that the earlier name Isa had a different meaning that was lost when replaced by a similar sounding name. It is unlikely that these early names were related to the Egyptian goddess. The association between Oxford and the Egyptian goddess Isis might be explained by her role as Stella Maris – " Star of the Sea " and "divine protector of sailors and fishermen". The Latin Stella Maris relates to Mary, mother of Jesus , and
2350-1121: The Formula Student cars manufactured by the Oxford Brookes University racing team used the name ISIS in the beginning of its chassis number. ISIS is then succeeded by the year number; for example, ISIS XII was the 2012 chassis, nicknamed "Miss Piggy". This continued until the 2016 season, when the naming convention changed to use an OBR prefix. The ISIS neutron source is named after the river Isis. 51°44′34″N 1°14′59″W / 51.7429°N 1.2497°W / 51.7429; -1.2497 Indo-European languages Pontic Steppe Caucasus East Asia Eastern Europe Northern Europe Pontic Steppe Northern/Eastern Steppe Europe South Asia Steppe Europe Caucasus India Indo-Aryans Iranians East Asia Europe East Asia Europe Indo-Aryan Iranian Indo-Aryan Iranian Others European The Indo-European languages are
2444-664: The Grand Union Canal (London to the Midlands). The Grand Union effectively bypassed the earlier, narrow and winding Oxford Canal which remains open as a popular scenic recreational route. Three further cross-basin canals are disused but are in various stages of reconstruction: the Thames and Severn Canal (via Stroud ), which operated until 1927 (to the west coast of England), the Wey and Arun Canal to Littlehampton , which operated until 1871 (to
2538-463: The Michaelmas term (autumn). Because the width of the river is restricted at Oxford, rowing eights normally have a staggered start near Donnington Bridge and must then aim to " bump " the eight in front (i.e. catch up and touch or overlap with it sufficiently). The leading eight aims to "row over" (i.e. finish the race without being bumped). There used to be ornate wooden barges on the river bank at
2632-598: The North Sea near Tilbury , Essex and Gravesend , Kent, via the Thames Estuary . From the west, it flows through Oxford (where it is sometimes called the Isis), Reading , Henley-on-Thames and Windsor . The Thames also drains the whole of Greater London . The lower reaches of the river are called the Tideway , derived from its long tidal reach up to Teddington Lock . Its tidal section includes most of its London stretch and has
2726-812: The Roman Empire , and was worshipped at the Temple of Isis near the Thames in Londinium during the Roman occupation . The name "Isis" is especially used in the context of rowing at the University of Oxford . A number of rowing regattas are held on the Isis, including Eights Week , the most important Oxford University regatta, in the Trinity term (summer), Torpids in the Hilary term (early spring) and Christ Church Regatta for novices in
2820-582: The Royal Academy , London , in 1785. They are now on show at the River and Rowing Museum in Henley). Richard Coates suggests that while the river was as a whole called the Thames, part of it, where it was too wide to ford, was called * (p)lowonida . This gave the name to a settlement on its banks, which became known as Londinium , from the Indo-European roots * pleu- "flow" and * -nedi "river" meaning something like
2914-474: The Tay achieves more than double the Thames' average discharge from a drainage basin that is 60% smaller. Along its course are 45 navigation locks with accompanying weirs . Its catchment area covers a large part of south-eastern and a small part of western England; the river is fed by at least 50 named tributaries . The river contains over 80 islands . With its waters varying from freshwater to almost seawater,
River Thames - Misplaced Pages Continue
3008-495: The Thames Barrier , which protects central London from flooding by storm surges . Below the barrier, the river passes Woolwich , Thamesmead , Dagenham , Erith , Purfleet , Dartford , West Thurrock , Northfleet , Tilbury and Gravesend before entering the Thames Estuary near Southend-on-Sea . The sea level in the Thames estuary is rising and the rate of rise is increasing. Sediment cores up to 10 m deep collected by
3102-533: The Thanetian stage of the late Palaeocene epoch. Until around 500,000 years ago, the Thames flowed on its existing course through what is now Oxfordshire , before turning to the north-east through Hertfordshire and East Anglia and reaching the North Sea near present-day Ipswich . At this time the river-system headwaters lay in the English West Midlands and may, at times, have received drainage from
3196-513: The study of religion at the University of Oxford , the association of the Egyptian goddess with Christianity , and the association of the Thames with the Egyptian goddess. It may also have been influenced by the revival of interest in classical Roman antiquities during the Renaissance in the 16th century, and the conflation theory endorsed by the antiquarian John Leland . The Morris Isis name
3290-432: The " wave model " is a more accurate representation. Most approaches to Indo-European subgrouping to date have assumed that the tree model is by-and-large valid for Indo-European; however, there is also a long tradition of wave-model approaches. In addition to genealogical changes, many of the early changes in Indo-European languages can be attributed to language contact . It has been asserted, for example, that many of
3384-455: The 16th century, European visitors to the Indian subcontinent began to notice similarities among Indo-Aryan , Iranian , and European languages. In 1583, English Jesuit missionary and Konkani scholar Thomas Stephens wrote a letter from Goa to his brother (not published until the 20th century) in which he noted similarities between Indian languages and Greek and Latin . Another account
3478-411: The 1880s. Brugmann's neogrammarian reevaluation of the field and Ferdinand de Saussure 's development of the laryngeal theory may be considered the beginning of "modern" Indo-European studies. The generation of Indo-Europeanists active in the last third of the 20th century (such as Calvert Watkins , Jochem Schindler , and Helmut Rix ) developed a better understanding of morphology and of ablaut in
3572-528: The Anatolian and Tocharian language families, in that order. The " tree model " is considered an appropriate representation of the genealogical history of a language family if communities do not remain in contact after their languages have started to diverge. In this case, subgroups defined by shared innovations form a nested pattern. The tree model is not appropriate in cases where languages remain in contact as they diversify; in such cases subgroups may overlap, and
3666-448: The Anatolian subgroup left the Indo-European parent language comparatively late, approximately at the same time as Indo-Iranian and later than the Greek or Armenian divisions. A third view, especially prevalent in the so-called French school of Indo-European studies, holds that extant similarities in non- satem languages in general—including Anatolian—might be due to their peripheral location in
3760-558: The Bronze Age in the form of Mycenaean Greek and the Anatolian languages of Hittite and Luwian . The oldest records are isolated Hittite words and names—interspersed in texts that are otherwise in the unrelated Akkadian language , a Semitic language —found in texts of the Assyrian colony of Kültepe in eastern Anatolia dating to the 20th century BC. Although no older written records of
3854-642: The Indo-Iranian branch. All Indo-European languages are descended from a single prehistoric language, linguistically reconstructed as Proto-Indo-European , spoken sometime during the Neolithic or early Bronze Age . The geographical location where it was spoken, the Proto-Indo-European homeland , has been the object of many competing hypotheses; the academic consensus supports the Kurgan hypothesis , which posits
River Thames - Misplaced Pages Continue
3948-494: The Isis with the celebrated circus proprietor Pablo Fanque : For a few days I amused myself with Pablo Fanque fishing in the Isis. Pablo was a very expert angler, and would usually catch as many fish as five or six of us within sight of him put together. This suggested a curious device. You must know that Pablo is a coloured man. One of the Oxonians, with more love for angling than skill, thought there must be something captivating in
4042-708: The North Sea, and the Thames Barrier was built in the 1980s to protect London from this risk. The Nore is the sandbank that marks the mouth of the Thames Estuary , where the outflow from the Thames meets the North Sea . It is roughly halfway between Havengore Creek in Essex and Warden Point on the Isle of Sheppey in Kent. Until 1964 it marked the seaward limit of the Port of London Authority. As
4136-489: The River Thames on the Tideway include the rivers Crane , Brent , Wandle , Ravensbourne (the final part of which is called Deptford Creek ), Lea (the final part of which is called Bow Creek ), Roding (Barking Creek), Darent and Ingrebourne . In London, the water is slightly brackish with sea salt, being a mix of sea and fresh water. This part of the river is managed by the Port of London Authority . The flood threat here comes from high tides and strong winds from
4230-414: The Thames Estuary), the river is subject to tidal activity from the North Sea . Before the lock was installed, the river was tidal as far as Staines, about 16 mi (26 km) upstream. London, capital of Roman Britain , was established on two hills, now known as Cornhill and Ludgate Hill . These provided a firm base for a trading centre at the lowest possible point on the Thames. A river crossing
4324-469: The Thames as "River Thames or Isis" down to Dorchester. Since the early 20th century this distinction has been lost in common usage outside of Oxford, and some historians suggest the name Isis is nothing more than a truncation of Tamesis , the Latin name for the Thames. Sculptures titled Tamesis and Isis by Anne Seymour Damer are located on the bridge at Henley-on-Thames , Oxfordshire (the original terracotta and plaster models were exhibited at
4418-437: The Thames is not Indo-European (and of unknown meaning), while Peter Kitson suggested that it is Indo-European but originated before the Britons and has a name indicating "muddiness" from a root *tā- , 'melt'. Early variants of the name include: Indirect evidence for the antiquity of the name "Thames" is provided by a Roman potsherd found at Oxford, bearing the inscription Tamesubugus fecit (Tamesubugus made [this]). It
4512-758: The Thames supports a variety of wildlife and has a number of adjoining Sites of Special Scientific Interest , with the largest being in the North Kent Marshes and covering 20.4 sq mi (5,289 ha). According to Mallory and Adams, the Thames, from Middle English Temese , is derived from the Brittonic name for the river, Tamesas (from * tamēssa ), recorded in Latin as Tamesis and yielding modern Welsh Tafwys "Thames". The name element Tam may have meant "dark" and can be compared to other cognates such as Russian темно ( Proto-Slavic * tĭmĭnŭ ), Lithuanian tamsi "dark", Latvian tumsa "darkness", Sanskrit tamas and Welsh tywyll "darkness" and Middle Irish teimen "dark grey". The origin
4606-421: The case of the Colne ), and man-made distributaries such as the Longford River . Three canals intersect this stretch: the Oxford Canal , Kennet and Avon Canal and Wey Navigation . Its longest artificial secondary channel (cut), the Jubilee River , was built between Maidenhead and Windsor for flood relief and completed in 2002. The non-tidal section of the river is managed by the Environment Agency , which
4700-419: The complexion of Pablo. He resolved to try. One morning, going down to the river an hour or two earlier than usual, we were astonished to find the experimental philosophic angler with his face blacked after the most approved style of the Christy's Minstrels . The name of the river likely has Brittonic origins, influenced in its evolution by later interest in the Egyptian goddess Isis . Known name variants for
4794-422: The confluence, the overall length of the Thames measured from Seven Springs, at 229 mi (369 km), is greater than the Severn's length of 220 mi (350 km). Thus, the "Churn/Thames" river may be regarded as the longest natural river in the United Kingdom. The stream from Seven Springs is joined at Coberley by a longer tributary which could further increase the length of the Thames, with its source in
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#17328377423604888-410: The early 20th century. Draining of the marshes helped with its eradication, but the causes are complex and unclear. The East End of London , also known simply as the East End , was the area of London east of the medieval walled City of London and north of the River Thames, although it is not defined by universally accepted formal boundaries; the River Lea can be considered another boundary. Most of
4982-650: The existence of an earlier ancestor language, which he called "a common source" but did not name: The Sanscrit [ sic ] language, whatever be its antiquity, is of a wonderful structure; more perfect than the Greek, more copious than the Latin, and more exquisitely refined than either, yet bearing to both of them a stronger affinity, both in the roots of verbs and the forms of grammar, than could possibly have been produced by accident; so strong indeed, that no philologer could examine them all three, without believing them to have sprung from some common source, which, perhaps, no longer exists. Thomas Young first used
5076-485: The family relationships between the Indo-European languages, and the reconstruction of their common source, was central to the development of the methodology of historical linguistics as an academic discipline in the 19th century. The Indo-European language family is not considered by the current academic consensus in the field of linguistics to have any genetic relationships with other language families, although several disputed hypotheses propose such relations. During
5170-410: The flowing river or the wide flowing unfordable river. The river gives its name to three informal areas: the Thames Valley , a region of England around the river between Oxford and West London; the Thames Gateway ; and the greatly overlapping Thames Estuary around the tidal Thames to the east of London and including the waterway itself. Thames Valley Police is a formal body that takes its name from
5264-432: The gender or the verb system) have been interpreted alternately as archaic debris or as innovations due to prolonged isolation. Points proffered in favour of the Indo-Hittite hypothesis are the (non-universal) Indo-European agricultural terminology in Anatolia and the preservation of laryngeals. However, in general this hypothesis is considered to attribute too much weight to the Anatolian evidence. According to another view,
5358-416: The genitive suffix -ī ; the superlative suffix -m̥mo ; the change of /p/ to /kʷ/ before another /kʷ/ in the same word (as in penkʷe > *kʷenkʷe > Latin quīnque , Old Irish cóic ); and the subjunctive morpheme -ā- . This evidence was prominently challenged by Calvert Watkins , while Michael Weiss has argued for the subgroup. Evidence for a relationship between Greek and Armenian includes
5452-533: The grounds of the National Star College at Ullenwood . The Thames flows through or alongside Ashton Keynes , Cricklade , Lechlade , Oxford , Abingdon-on-Thames , Wallingford , Goring-on-Thames and Streatley (at the Goring Gap ), Pangbourne and Whitchurch-on-Thames , Reading , Wargrave , Henley-on-Thames , Marlow , Maidenhead , Windsor and Eton , Staines-upon-Thames and Egham , Chertsey , Shepperton , Weybridge , Sunbury-on-Thames , Walton-on-Thames , Molesey and Thames Ditton . The river
5546-461: The homeland to be the Pontic–Caspian steppe in what is now Ukraine and southern Russia , associated with the Yamnaya culture and other related archaeological cultures during the 4th millennium BC to early 3rd millennium BC. By the time the first written records appeared, Indo-European had already evolved into numerous languages spoken across much of Europe , South Asia , and part of Western Asia . Written evidence of Indo-European appeared during
5640-399: The ice melt nearly concluded over the past 4,000 years. Since the beginning of the 20th century, rates of sea level rise range from 1.22 mm per year to 2.14 mm per year. The Thames River Basin District, including the Medway catchment, covers an area of 6,229 sq mi (16,130 km). The entire river basin is a mixture of urban and rural, with rural landscape predominating in
5734-416: The impresario Fred Karno and Eel Pie Island at Twickenham was the birthplace of the South East's R&B music scene. Westminster Abbey and the Palace of Westminster (commonly known today as the Houses of Parliament ) were built on Thorney Island , which used to be an eyot . Researchers have identified the River Thames as a discrete drainage line flowing as early as 58 million years ago, in
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#17328377423605828-567: The individual Indo-European languages with the most native speakers are English, Spanish, Portuguese, Russian, Hindustani , Bengali , Punjabi , French and German each with over 100 million native speakers; many others are small and in danger of extinction. In total, 46% of the world's population (3.2 billion people) speaks an Indo-European language as a first language —by far the highest of any language family. There are about 445 living Indo-European languages, according to an estimate by Ethnologue , with over two-thirds (313) of them belonging to
5922-401: The local riverside was also marshland. The land was drained and became farmland; it was built on after the Industrial Revolution . Canvey Island in southern Essex (area 18.45 km, 7.12 sq mi; population 40,000) was once marshy, but is now a fully reclaimed island in the Thames estuary, separated from the mainland of south Essex by a network of creeks. Lying below sea level, it
6016-426: The men's second crew of the Cambridge University Boat Club , before the annual Oxford vs. Cambridge Boat Race on the Thames in London . The Isis, like much of the Thames, has long been popular among anglers for its freshwater fish, including trout and crayfish . The Oxford region is home to several angling clubs. W. F. Wallett , a popular Victorian clown, shares in his memoirs his own anecdote about fishing in
6110-404: The more striking features shared by Italic languages (Latin, Oscan, Umbrian, etc.) might well be areal features . More certainly, very similar-looking alterations in the systems of long vowels in the West Germanic languages greatly postdate any possible notion of a proto-language innovation (and cannot readily be regarded as "areal", either, because English and continental West Germanic were not
6204-423: The non-tidal river, which is a drinking water source before treatment, sanitary sewer overflow from the many sewage treatment plants covering the upper Thames basin should be rare in the non-tidal Thames. However, storm sewage overflows are still common in almost all the main tributaries of the Thames despite claims by Thames Water to the contrary. Below Teddington Lock (about 55 mi or 89 km upstream of
6298-415: The original Proto-Indo-European population remain, some aspects of their culture and their religion can be reconstructed from later evidence in the daughter cultures. The Indo-European family is significant to the field of historical linguistics as it possesses the second-longest recorded history of any known family, after the Afroasiatic Egyptian language and Semitic languages . The analysis of
6392-557: The perfect active particle -s fixed to the stem, link this group closer to Anatolian languages and Tocharian. Shared features with Balto-Slavic languages, on the other hand (especially present and preterit formations), might be due to later contacts. The Indo-Hittite hypothesis proposes that the Indo-European language family consists of two main branches: one represented by the Anatolian languages and another branch encompassing all other Indo-European languages. Features that separate Anatolian from all other branches of Indo-European (such as
6486-461: The regular change of the second laryngeal to a at the beginnings of words, as well as terms for "woman" and "sheep". Greek and Indo-Iranian share innovations mainly in verbal morphology and patterns of nominal derivation. Relations have also been proposed between Phrygian and Greek, and between Thracian and Armenian. Some fundamental shared features, like the aorist (a verb form denoting action without reference to duration or completion) having
6580-534: The river passes Pimlico and Vauxhall , and then forms one of the principal axes of the city, from the Palace of Westminster to the Tower of London . At this point, it historically formed the southern boundary of the medieval city, with Southwark , on the opposite bank, then being part of Surrey . Beyond central London, the river passes Bermondsey , Wapping , Shadwell , Limehouse , Rotherhithe , Millwall , Deptford , Greenwich , Cubitt Town , Blackwall , New Charlton and Silvertown , before flowing through
6674-437: The river to divert onto its present course through the area of present-day London. The ice lobe which stopped at present-day Finchley deposited about 14 metres of boulder clay there. Its torrent of meltwater gushed through the Finchley Gap and south towards the new course of the Thames, and proceeded to carve out the Brent Valley in the process. The Isis " The Isis " ( / ˈ aɪ s ɪ s / EYE -siss )
6768-439: The river was tidal at peak spring tides as far as Staines upon Thames . In descending order, non-related tributaries of the non-tidal Thames, with river status, are the Churn , Leach , Cole , Ray , Coln , Windrush , Evenlode , Cherwell , Ock , Thame , Pang , Kennet , Loddon , Colne , Wey and Mole . In addition, there are occasional backwaters and artificial cuts that form islands, distributaries (most numerous in
6862-588: The river, covering three counties . In non-administrative use, the river's name is used in those of Thames Valley University , Thames Water , Thames Television , publishing company Thames & Hudson , Thameslink (north–south rail service passing through central London ) and South Thames College . An example of its use in the names of historic entities is the Thames Ironworks and Shipbuilding Company . Marks of human activity, in some cases dating back to Pre-Roman Britain , are visible at various points along
6956-563: The river, while some islands, e.g. Thorney Island , formed over the ages. The northern tip of the ancient parish of Lambeth , for example, was marshland known as Lambeth Marshe , but it was drained in the 18th century; the street names Lower Marsh and Upper Marsh preserve a memory. Until the middle of the Victorian era, malaria was commonplace beside the River Thames, even in London, and was frequently lethal. Some cases continued to occur into
7050-515: The river. These include a variety of structures connected with use of the river, such as navigations, bridges and watermills , as well as prehistoric burial mounds . The lower Thames in the Roman era was a shallow waterway winding through marshes. But centuries of human intervention have transformed it into a deep tidal canal flowing between 200 miles of solid walls; these defend a floodplain where 1.5 million people work and live. A major maritime route
7144-599: The sandbank was a major hazard for shipping coming in and out of London, in 1732 it received the world's first lightship . This became a major landmark, and was used as an assembly point for shipping. Today it is marked by Sea Reach No. 1 Buoy. The River Thames contains over 80 islands ranging from the large estuarial marshlands of the Isle of Sheppey and Canvey Island to small tree-covered islets like Rose Isle in Oxfordshire and Headpile Eyot in Berkshire. They are found all
7238-537: The similarity among certain Asian and European languages and theorized that they were derived from a primitive common language that he called Scythian. He included in his hypothesis Dutch , Albanian , Greek , Latin , Persian , and German , later adding Slavic , Celtic , and Baltic languages . However, Van Boxhorn's suggestions did not become widely known and did not stimulate further research. Ottoman Turkish traveler Evliya Çelebi visited Vienna in 1665–1666 as part of
7332-434: The source of all the Germanic languages. In the 21st century, several attempts have been made to model the phylogeny of Indo-European languages using Bayesian methodologies similar to those applied to problems in biological phylogeny. Although there are differences in absolute timing between the various analyses, there is much commonality between them, including the result that the first known language groups to diverge were
7426-528: The south coast), and the Wilts & Berks Canal . Rowing and sailing clubs are common along the Thames, which is navigable to such vessels. Kayaking and canoeing also take place. Major annual events include the Henley Royal Regatta and the Boat Race , while the Thames has been used during two Summer Olympic Games : 1908 ( rowing ) and 1948 ( rowing and canoeing ). Safe headwaters and reaches are
7520-562: The southern end of Christ Church Meadow to house rowing facilities and for viewing races. Now the barges are gone and there are boathouses instead a little further down the river near the confluence with the River Cherwell . Poplar Walk in Christ Church Meadow is used as a route to and from the boathouses. The name "Isis" is also used for the men's second rowing eight of Oxford University Boat Club , who race against Goldie ,
7614-600: The standard scientific term. A number of other synonymous terms have also been used. Franz Bopp wrote in 1816 On the conjugational system of the Sanskrit language compared with that of Greek, Latin, Persian and Germanic and between 1833 and 1852 he wrote Comparative Grammar . This marks the beginning of Indo-European studies as an academic discipline. The classical phase of Indo-European comparative linguistics leads from this work to August Schleicher 's 1861 Compendium and up to Karl Brugmann 's Grundriss , published in
7708-475: The striking similarities among three of the oldest languages known in his time: Latin , Greek , and Sanskrit , to which he tentatively added Gothic , Celtic , and Persian , though his classification contained some inaccuracies and omissions. In one of the most famous quotations in linguistics, Jones made the following prescient statement in a lecture to the Asiatic Society of Bengal in 1786, conjecturing
7802-528: The term Indo-European in 1813, deriving it from the geographical extremes of the language family: from Western Europe to North India . A synonym is Indo-Germanic ( Idg. or IdG. ), specifying the family's southeasternmost and northwesternmost branches. This first appeared in French ( indo-germanique ) in 1810 in the work of Conrad Malte-Brun ; in most languages this term is now dated or less common than Indo-European , although in German indogermanisch remains
7896-495: The upper Thames, recorded during the medieval period , include Ysa or Usa (14th century), Isa, Ise (14th century), and Isis or Ouse (16th century). The name variants Isa , Ise , suggest a Celtic origin and may derive from Brittonic is ('refresh') or isca ('water'). Many common river names have a similar origin, including the Axe , Esk , Exe and Usk , as well as the Celtic name for
7990-501: The wake of Kuryłowicz 's 1956 Apophony in Indo-European, who in 1927 pointed out the existence of the Hittite consonant ḫ. Kuryłowicz's discovery supported Ferdinand de Saussure's 1879 proposal of the existence of coefficients sonantiques , elements de Saussure reconstructed to account for vowel length alternations in Indo-European languages. This led to the so-called laryngeal theory , a major step forward in Indo-European linguistics and
8084-701: The way from Fiddler's Island in Oxfordshire to the Isle of Sheppey in Kent. Some of the largest inland islands, for example Formosa Island near Cookham and Andersey Island at Abingdon, were created naturally when the course of the river divided into separate streams. In the Oxford area the river splits into several streams across the floodplain ( Seacourt Stream , Castle Mill Stream , Bulstake Stream and others), creating several islands ( Fiddler's Island , Osney and others). Desborough Island , Ham Island at Old Windsor and Penton Hook Island were artificially created by lock cuts and navigation channels. Chiswick Eyot
8178-411: The western part. The area is among the driest in the United Kingdom. Water resources consist of groundwater from aquifers and water taken from the Thames and its tributaries, much of it stored in large bank-side reservoirs . The Thames itself provides two-thirds of London's drinking water, while groundwater supplies about 40 per cent of public water supplies in the overall catchment area. Groundwater
8272-550: The worship of Isis was associated with the transformation of Roman society away from paganism towards Christianity . It had been conjectured that the Romano-British name for the Thames (" Tamesis ") is a conflation (joining together) of its two main tributary names, the River Thame and the Isis. The conflation theory might explain why the Thames retained a trailing 's' – but the River Thame did not. The conflation theory
8366-565: The year, while those at Thames Head are seasonal (a winterbourne ). With a length of 215 mi (346 km), the Thames is the longest river entirely in England. (The longest river in the United Kingdom, the Severn , flows partly in Wales .) However, as the River Churn, sourced at Seven Springs, is 14 mi (23 km) longer than the section of the Thames from its traditional source at Thames Head to
8460-479: Was built at the site of London Bridge . London Bridge is now used as the basis for published tide tables giving the times of high tide . High tide reaches Putney about 30 minutes later than London Bridge, and Teddington about an hour later. The tidal stretch of the river is known as "the Tideway ". Tide tables are published by the Port of London Authority and are available online. Times of high and low tides are also posted on Twitter. The principal tributaries of
8554-566: Was first used by Morris Motors of Oxford on a six-cylinder car made from 1929 to 1931. It was resurrected on a six-cylinder car from the British Motor Corporation in the 1950s. The name died out in 1958. HMP Isis is a Category C Young Offenders Institution in England operated by His Majesty's Prison Service , adjacent to HMP Belmarsh and HMP Thameside near the River Thames in the Woolwich area of South East London. Each of
8648-597: Was made by Filippo Sassetti , a merchant born in Florence in 1540, who travelled to the Indian subcontinent. Writing in 1585, he noted some word similarities between Sanskrit and Italian (these included devaḥ / dio "God", sarpaḥ / serpe "serpent", sapta / sette "seven", aṣṭa / otto "eight", and nava / nove "nine"). However, neither Stephens' nor Sassetti's observations led to further scholarly inquiry. In 1647, Dutch linguist and scholar Marcus Zuerius van Boxhorn noted
8742-606: Was proposed and endorsed by antiquarians and scholars during the middle ages , including Ranulf Higden , John Leland , and William Camden (1551–1623). In the late 17th century, the Welsh scholar Edward Lhuyd – second Keeper of the Ashmolean Museum in Oxford – endorsed the conflation theory in Parochailia (1695). Use of the modern form of the name Isis for the river was first recorded c.1540, and may have been influenced by
8836-610: Was subject to minor redefining and widening of the main channel around Oxford, Abingdon and Marlow before 1850, when further cuts to ease navigation reduced distances further. Molesey faces Hampton , and in Greater London the Thames passes Hampton Court Palace , Surbiton , Kingston upon Thames , Teddington , Twickenham , Richmond (with a famous view of the Thames from Richmond Hill), Syon House , Kew , Brentford , Chiswick , Barnes , Hammersmith , Fulham , Putney , Wandsworth , Battersea and Chelsea . In central London ,
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