It Was the First State to Celebrate This Day Officially As A State Holiday
On June 14, 1777, the Stars and Stripes were adopted by the Continental Congress as the Flag of the United States. On June 14, 1877 Flag Day was observed nationally for the first time on the 100th anniversary of the Stars and Stripes and continues today. On June 14, 1937 Pennsylvania became the... Sign in to see full entry.