On April 19, 1775, the American Revolutionary War began with the Battles of Lexington and Concord — the start of an eight-year armed conflict between American colonists and the British Army.

On Feb. 28, 1993, a gunbattle erupted at a religious compound near Waco, Texas, when Bureau of Alcohol, Tobacco and Firearms agents tried to arrest Branch Davidian leader David Koresh for stockpiling illegal weapons; four agents and six Davidians were killed as a 51-day standoff began. (On April 19 of that year, FBI agents stormed the compound with tear gas and armored vehicles, with dozens dead before the standoff was over).

On Feb. 28, 1993, a gun battle erupted at a religious compound near Waco, Texas, when Bureau of Alcohol, Tobacco and Firearms agents tried to arrest Branch Davidian leader David Koresh on weapons charges; four agents and six Davidians were killed as a 51-day standoff began.