September 12th is the 255th day of the year (256th in leap years) in the Gregorian calendar. There are 110 days remaining until the end of the year.
379 – Yax Nuun Ahiin I took the throne as ajaw of the Mayan city of Tikal.
1848 – Switzerland became a federal state with the adoption of a new constitution.
1928 – The Okeechobee hurricane first struck the island of Guadeloupe; eventually it reached the United States and caused over 4,000 deaths overall.
1977 – South African anti-apartheid activist Steve Biko died after being beaten in police custody in Port Elizabeth.
2008 – A Metrolink train collided head-on with a freight train in Los Angeles, California, resulting in 25 deaths and 135 injuries; the Metrolink driver had passed through a red signal, having likely been distracted by text messaging.
Greg Gutfield turns 54
Louis C.K. turns 51
Paul Walker would have turned 45
Jennifer Hudson turns 37
Emmy Rossum turns 32