The bombing of a Baptist church in Birmingham on September 15, 1963, which killed four girls and injured nearly two dozen others.
Members of the Ku Klux Klan, a white supremacy group, planted sticks of dynamite beneath a stairway to the basement inside the 16th Street Baptist Church. A timing device set the dynamite to explode at around 10:25am on that Sunday morning. The girls who were killed had been in the basement changing into their choir robes for the Sunday service. The whole building was shaken and damaged, and many people upstairs were injured.
As far as I remember, the answer is: One historical contribution of the Neolithic period is the overall ability to grow crops. Neolithic period is the period when people earned advanced skills in growing corps.
Rise in cities, Artst architecture, public works, and social classes
