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National days, ongoing national weeks and months, and global observances for February 11, 2026. Plus historical events and birthdays.
These observances run for a full week; this calendar day falls inside the week.
These observances last the full month; this date is part of that month-long celebration.
Showing the first 12 on this date; there are more month-long observances. See the full months list for February.
International and other global observances on this date (may include days, weeks, or months).
Events that occurred on February 11 throughout history
The United States Patent Office issues Robert Fulton a patent for the first successful steamboat. Although the original patent record was destroyed in the 1936 US Patent Office fire, Fulton's commercial success with his North River Steamboat and Clermont spread westward.
Frederick Banting and Charles Best discover insulin at the University of Toronto. Their discovery would advance the treatment of diabetes.
Declaration of a Liberated Europe signed at Yalta Conference by President Franklin D. Roosevelt, Prime Minister Winston Churchill, and General Joseph Stalin.
After 27 years as a political prisoner, the leader to end South African apartheid, Nelson Mandela is released from Victor Verster Prison outside of Cape Town, South Africa. February 11th Celebrated Birthdays
