On February 11, 1752, Benjamin Franklin opened Pennsylvania Hospital, the first hospital in the United States. On the same date in 1790, the Religious Society of Friends, also known as Quakers, petitioned U.S. Congress to abolish slavery.
In an early effort towards republican government transparency, on this date in 1794, the first session of United States Senate opened to the public.
February 11 birthdays include
1805 – Jean Baptiste Charbonneau, son of Sacagawea
1833 – Melville Weston Fuller, American jurist and 8th Chief Justice of the United States
1847 – Thomas Alva Edison, American inventor