Four black schoolgirls killed in Birmingham

On September 15, 1963, the 16th Street Baptist Church was bombed in Birmingham, AL, killing four little girls. From the article:

"On this day in 1963, a bomb explodes during Sunday morning services in the 16th Street Baptist Church in Birmingham, Alabama, killing four young girls.

With its large African-American congregation, the 16th Street Baptist Church served as a meeting place for civil rights leaders like Martin Luther King, Jr., who once called Birmingham a “symbol of hardcore resistance to integration.” Alabama’s governor, George Wallace, made preserving racial segregation one of the central goals of his administration, and Birmingham had one of the most violent and lawless chapters of the Ku Klux Klan.

The church bombing was the third in Birmingham in 11 days after a federal order came down to integrate Alabama’s school system. Fifteen sticks of dynamite were planted in the church basement, underneath what turned out to be the girls’ restroom. The bomb detonated at 10:19 a.m., killing Cynthia Wesley, Carole Robertson and Addie Mae Collins–all 14 years old–and 11-year-old Denise McNair. Immediately after the blast, church members wandered dazed and bloodied, covered with white powder and broken stained glass, before starting to dig in the rubble to search for survivors. More than 20 other members of the congregation were injured in the blast."