Aug 2, 1776. Contrary to widespread misconceptions, the 56 signers did not sign as a group and did not do so July 4, 1776. John Hancockand Charles Thomson signed only draft copies that day, the official day the Declaration of Independence was adopted by Congress. The signing of the official declaration occurred Aug 2, 1776, when 50 men probably took part. Later that year, five more apparently signed separately, and one added his name in a subsequent year.
August 2, 2017 all-day