First, of course, is Patriot's Day, the day "the shot heard round the world" was fired, starting open war between the colonies and Great Britain. I'm sure this audience knows the story, but in the aftermath of the Boston Tea Party, King George decided a military rule was needed for those unruly colonists. In more direct words, it was a military dictatorship, under General Thomas Gage. Gage directed a house-to-house search for firearms, confiscating hundreds of guns.
When Gage's spies reported that the colonists were stockpiling weapons in Concord, he sent a group of regulars to confiscate the guns. As all tyrants throughout history have understood, it is much easier to impose dictatorial rule if the general population has been disarmed. This day, thanks to Paul Revere and other patriots, the rebels were better prepared and ready, meeting the redcoats at Old North Bridge, inflicting 73 casualties upon His Majesty’s forces. Appleseed events give a great telling of the history of that day.
Apparently, it was coincidence that the Bureau of Alcohol, Tobacco, and Firearms (ATF) staged a dawn raid on a religious compound belonging to an obscure religious group called the Branch Davidians outside of Waco, Texas, on April 19, 1993. There had been a standoff outside the compound since the end of February, when the ATF first raided the group, alleging that the Davidians were stockpiling illegal weapons, abusing children, and manufacturing illegal drugs - none of which were ever proven.
The surviving Davidians claim that it was a combination of the tanks pounding on the walls of their building, knocking over lanterns in a space filled with propane fuel (the government had cut off their electricity earlier) and CS gas that started the fires which killed most of those inside. The government, on the other hand, contends that it was Davidian leader David Koresh who ordered the fire started — either in self defense, to kill FBI agents, or in an act of mass suicide. President Bill Clinton even callously asserted, “A bunch of religious fanatics murdered themselves.”It was not a coincidence however that Timothy McVeigh (and unknown others) chose April 19th, 1995 though; they acted in revenge for Waco and attacked on the second anniversary of the ATF's attack. Their attack on the Murrah Building in Oklahoma City, probably because it contained an ATF office, would be the worst act of terrorism on American soil until 9/11/2001.