Today is a Yom Tov cited in Megillat Taanit, commemorating the defeat of the Greeks by the Jews. The Jews had given the Greeks a three-day grace period in which they would be allowed to retreat but they did not. This ultimately led to their defeat.
1794- Jewish regiment with the Polish Revolutionary Army is first Jewish fighting force of modern times.
September 14, 1903- The Jews of Homel, Russia were massacred.
September 6, 1939- The Nazis occupied Gorlice, Poland and commenced their terror by taking hostages.
September 6, 1939- German forces occupied the Polish cities of Cracow, Radom, Lodz,
Tarnow, and Premisyl.
September 14, 1941- 9,000 Jews of Slonim, Russia were murdered by the Nazis.