<P> The English longbow was a powerful medieval type of longbow (a tall bow for archery) about 6 ft (1.8 m) long used by the English and Welsh for hunting and as a weapon in medieval warfare . English use of longbows was effective against the French during the Hundred Years' War, particularly at the start of the war in the battles of Sluys (1340), Crécy (1346), and Poitiers (1356), and perhaps most famously at the Battle of Agincourt (1415). They were less successful after this, with longbowmen having their lines broken at the Battle of Verneuil (1424), and being completely routed at the Battle of Patay (1429) when they were charged before they had set up their defensive position . </P> <P> The earliest longbow known from England, found at Ashcott Heath, Somerset, is dated to 2665 BC, but no longbows survive from the period when the longbow was dominant (c. 1250--1450 AD), probably because bows became weaker, broke and were replaced, rather than being handed down through generations . More than 130 bows survive from the Renaissance period, however . More than 3,500 arrows and 137 whole longbows were recovered from the Mary Rose, a ship of Henry VIII's navy that sank at Portsmouth in 1545 . </P> <P> A longbow must be long enough to allow its user to draw the string to a point on the face or body, and the length therefore varies with the user . In continental Europe it was generally seen as any bow longer than 1.2 m (3.9 ft). The Society of Antiquaries of London says it is of 5 or 6 feet (1.5 or 1.8 metres) in length . Richard Bartelot, of the Royal Artillery Institution, said that the bow was of yew, 6 feet (1.8 m) long, with a 3 - foot (910 mm) arrow . Gaston III, Count of Foix, wrote in 1388 that a longbow should be "of yew or boxwood, seventy inches (1.8 m) between the points of attachment for the cord". Historian Jim Bradbury said they were an average of about 5 feet and 8 inches . All but the last estimate were made before the excavation of the Mary Rose, where bows were found ranging in length from 1.87 to 2.11 m (6 ft 2 in to 6 ft 11 in) with an average length of 1.98 m (6 ft 6 in). </P>

When did the english start using the longbow