The British Parliament passed the Abolition of the Slave
The British Parliament passed the Abolition of the Slave Trade Act making the slave trade illegal in the British colonies. However, trade continued in the Caribbean until 1811.
National days, ongoing national weeks and months, and global observances for March 25, 2026. Plus historical events and birthdays.

March 25, 2026 celebrates Tolkien Reading Day, plus 5 more.
Read the full story →Founded in 2016 by National Day Calendar® and Radio Flyer®.
Read the full story →Whole Day for Whole Grain (formerly Whole Grain Sampling Day) is celebrated on the last Wednesday of March, is all about ditching the "boring" and embracing whole grains with gusto! This is you invitation to stop playing it safe with white bread and start exploring a world of nutty, chewy, and downright delicious ancient seeds and stalks.
Read the full story →Events that occurred on March 25 throughout history
The British Parliament passed the Abolition of the Slave Trade Act making the slave trade illegal in the British colonies. However, trade continued in the Caribbean until 1811.
Three years after crews began, the Chicago Lake Tunnel is activated. The tunnel extends two miles into Lake Michigan to collect fresh water and connects to the Water Supply System of Chicago. It is the first water supply tunnel for a U.S. city, and the first of many water supply tunnels for Chicago.
Hamlet wins Best Picture at the 21st Academy Awards. It's the first British film to win an Oscar.
Elvis Presley receives a regulation haircut from the U.S. Army.
Longer-running observances that include this date.
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