On This Day - April 11, 2026

National days, ongoing national weeks and months, and global observances for April 11, 2026. Plus historical events and birthdays.

2026

Ongoing National Weeks

These observances run for a full week; this calendar day falls inside the week.

Ongoing National Months

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 April.

Historical Events on April 11

Events that occurred on April 11 throughout history

1900

United States Navy acquired its first modern commissioned submarine. Designed by Irish-American inventor John Phillip Holland in 1896, the cost to the U.S. Navy was $160,000.

1947

First baseman Jackie Robinson signs a contract with the Brooklyn Dodgers one day after the team purchased his contract from the Montreal Royals of the International League. Later the same day, Robinson plays an exhibition game against the New York Yankees, driving in three runs. Dodgers win 14-6.

1970

Apollo 13 launches from the Kennedy Space Center in Brevard County, Florida. The crew included astronauts James Lovel, John Swigert, and Fred W. Haise.

1988

Cher wins the Best Actress Academy Award for her role in Moonstruck.