NEW YORK (AP) — The nightclub attack in Orlando that left 49 victims dead was initially described by some news organizations, including The Associated Press, as the deadliest mass shooting in U.S. history. In truth, America…

Source: AP Explains: How does Orlando massacre fit in US history?

Mass violence has “a long, ugly history” in America, said Katherine Grandjean, history professor at Wellesley College. “It’s a pattern as old as the nation and goes back long before even into the colonial roots.”

The victims have often been racial, ethnic or religious minorities. The perpetrators have ranged from military troops to mobs to a single shooter.