On 9/11 :
313th day of the year (314th in leap years)
1888 – Jack the Ripper kills Mary Jane Kelly, his last known victim.
1938 – Nazi German diplomat Ernst vom Rath dies from the fatal gunshot wounds of Jewish resistance fighter Herschel Grynszpan, an act which the Nazis used as an excuse to instigate the 1938 national pogrom, also known as Kristallnacht.
1989 – Cold War: Fall of the Berlin Wall. Communist-controlled East Germany opens checkpoints in the Berlin Wall allowing its citizens to travel to West Germany.
1921 – Albert Einstein is awarded the Nobel Prize in Physics for his work with the photoelectric effect.
2005 – Suicide bombers attacked three hotels in Amman, Jordan, killing at least 60 people.