Ground Zero excavators find 18th century ship's hull - Telegraph

An explosion rips through the South Tower of the World Trade Towers after the hijacked United Airlines Flight 175 crashed into it
The vessel probably was used along with other debris to fill in land to extend lower Manhattan into the Hudson River, archeologists said.

Molly McDonald and A. Michael Pappalardo, archeologists, were at the site of the 9/11 terror attacks when workers uncovered the artifacts.