On this day 250 years ago, 54 chests and one barrel of tea salvaged from the William were unloaded to Castle William in Boston Harbor. This tea was from the fourth ship with East India Company tea headed to Boston that had shipwrecked off Cape Cod. Aware of the fate of the tea from the previous three ships and threats from the Patriots in Boston, in the coming days the intended consignees of the tea would refuse to accept delivery of the tea.

Source: https://www.jstor.org/stable/10.5309/willmaryquar.73.4.0681?read-now=1&seq=8#page_scan_tab_contents