2013: Boston Marathon bombing suspect Tamerlan Tsarnaev is killed in a shootout with police. His brother Dzhokhar is later captured hiding in a boat inside a backyard in the suburb of Watertown.
1997: The 1997 Red River flood overwhelms the city of Grand Forks, North Dakota. Fire breaks out and spreads in downtown Grand Forks, but high water levels hamper efforts to reach the fire, leading to the destruction of 11 buildings.
1993: The 51-day FBI siege of the Branch Davidian building in Waco, Texas, USA, ends when a fire breaks out. 76 Davidians including 18 children under the age of 10 died in the fire.
1989: A gun turret explodes on the USS Iowa, killing 47 sailors.
1782: John Adams secures the Dutch Republic's recognition of the United States as an independent government. The house which he had purchased in The Hague, Netherlands becomes the first American embassy.
1775: American Revolutionary War: The war begins with an American victory in Concord during the battles of Lexington and Concord.
797: Empress Irene organizes a conspiracy against her son, the Byzantine emperor Constantine VI. He is deposed and blinded. Shortly after, Constantine dies of his wounds; Irene proclaims herself basileus.