
London Bridge is a bridge in London which crosses the River Thames. The first bridge was built by the Romans in 55 AD, and the bridge was destroyed in the early 5th century after the Romans abandoned Britannia. King Alfred the Great rebuilt London Bridge after his reconquest of the city from the Danes in 886, only to be destroyed by Olaf II of Norway in 1014 to trap a new Danish army in the city. Other London bridges existed from 1066 to 1091, from the 1090s to 1136, 1209 to 1831 ("Old London Bridge"), 1831 to 1967 ("New London Bridge"), and from 1967 to present; its repeated depredations and repairs inspired the nursery rhyme "London Bridge is Falling Down".