The following is a timeline of the flag of the United States. 1776 January 1 – The Continental Colours, first flown at the commissioning of Continental Admiral Esek Hopkins' flagship on December 3, 1775, is displayed at George Washington's Prospect Hill camp, north of Cambridge and Boston, during the Siege of Boston. The flag has 13 horizontal stripes, alternating red and white in the field, representing the United Colonies of America, and a British Union flag in the canton.
1776 May – A popular legend promulgated by the descendants of Betsy Ross of Philadelphia during the 1870s holds that the seamstress sewed the first American flag.