Standing over one of the Colonial, brick sidewalks that help define Annapolis, the archaeologists began digging with trowels and shovels.

The team from the University of Maryland carved a 4-foot-long trench along a sidewalk at Fleet and Cornhill streets - two of the oldest in the historic district. Bagging and tagging artifacts along the way, they scraped through the powdered remains of a red brick sidewalk from 1820 and a black layer of wood chips from 1740.

Then they found something far more significant than the shards of pearlware, animal bones and the King George III penny that they uncovered in the layers above: a log street that archaeologists called the oldest remnant yet discovered of the Annapolis settlement.