Significant events that happened (or will happen) on April 13.
- 1905 – Edwin A. Alderman become the first president of the University of Virginia when he was formally inaugurated on Thomas Jefferson's birthday, celebrated as Founder's Day.
- 1743 – Thomas Jefferson, the third of ten children, was born at the family home in Shadwell to Peter and Jane (Randolph) Jefferson. (April 2, 1743, Old Style, Julian calendar).
- Web. History of the University of Virginia, 1819-1919, Philip Alexander Bruce, 1922, retrieved June 1, 2019.