Patriot’s Day is technically April 19th but is celebrated in most states on the third Monday in April. This year it will be on Monday April 21st. This time of the year has a high incidence of historical events. Oklahoma bombing, Boston bombing, etc…

1775 – American Revolutionary War: The war begins during the Battles of Lexington and Concord with a victory of American minutemen and other militia over British forces, later referred to as the "shot heard round the world"