Principal river of England. It rises in the Cotswolds in Gloucestershire and winds 205 mi (330 km) eastward across south-central England into a great estuary, through which it empties into the North Sea. It is tidal for about 65 mi (104 km). Known by the Romans and by early English chroniclers, it has been celebrated by bards throughout history. One of the world's most important commercial waterways, it is navigable by large vessels to London.
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The Thames River is a short river and tidal estuary in the U.S. state of Connecticut. It flows south for 15 mi. (25 km.) through eastern Connecticut from the junction of the Yantic and Shetucket Rivers at Norwich, to New London and Groton, which flank its mouth at the Long Island Sound.
Differing from its namesake, the River Thames in England, Connecticut's "Thames" is pronounced as it is written, to rhyme with "James," rather than as "temz" (as /θeɪmz/ rather than /tɛmz/), reflecting the pre-Hanoverian English pronunciation. (But see Thames#Origin of the name).
The river has provided important harbors since the mid-17th century when it was known as the Pequot River for the Pequot Indians who lived in the area. Other early names for the river have included Frisius, Great, Great River of Pequot, Little Fresh, Mohegan, New London, and Pequod.
The Harvard-Yale Boat Race is held annually in New London.