Wikipedia:Selected anniversaries/March 15
Appearance
On March 15:
![Christopher Columbus](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Columbus.jpg/100px-Columbus.jpg)
- 44 BC - Julius Caesar was killed by a group of Roman senators.
- 1493 - Christopher Columbus returned after his first trip to the Americas.
- 1906 - Charles Rolls and Henry Royce founded automaker Rolls-Royce.
- 1917 - Tsar Nicholas II abdicated, ending Imperial Russia.
- 1944 - Allied aircraft heavily bombed the monastery atop Monte Cassino.