London's Oldest "Boardwalk" Found?

London's oldest known timber structure could be the city's earliest "boardwalk," archaeologists say.

Preserved for more than 5,700 years, the structure was found in an ancient peat bog next to the Belmarsh prison in Plumstead, a suburb of East London near the banks of the River Thames (see map).

"It is definitely man-made, and a very rare find," said team member Jon Sygrave of the Institute of Archaeology at University College London.

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