Patriots Day in America commemorates opening battles of American Revolution on April 19 . Boston Marathon is always held on Patriots Day , which falls on third Monday in April . Only the Waco siege and the Oklahoma City bombing actually occurred on April 19 , the anniversary of the Battles of Lexington and Concord . April 19 is anniversary of the FBI bombing of Waco compound , 1995 Oklahoma City bombing . China : April 19 is a ` ` high holiday '' for those who think they live ` ` under the thumb '' of tyranny .
Patriots Day in America commemorates opening battles of American Revolution on April 19 . Boston Marathon is always held on Patriots Day , which falls on third Monday in April . April 19 is anniversary of the FBI bombing of Waco compound , 1995 Oklahoma City bombing . China : April 19 is a ` ` high holiday '' for those who think they live ` ` under the thumb '' of tyranny .