March 21st is also known as Memory Day and Common Courtesy Day.
We’re now on the 80th day of the year, and have 285 days left.
For those of you who were born on this day, your zodiac sign is Aries.
This day in history has a dark side with thousands being executed due to discrimination, but it was also a great day for animals, literature and online social media.
Did you know that on this day in 1963, Alcatraz prison in San Francisco Bay closed its gates for good? The prison had operated for over 29 years.
Keep reading for more interesting facts about March 21st in history!
What Happened On March 21 In History?
Game of Thrones star Emilia Clarke shared her experience of fighting for her life after suffering two brain aneurysms during filming.
A woman in Bangladesh gave birth to twins one month after giving birth previously.
It turned out that the mother has two uteruses.
Aaron Carpenter swam with dolphins for the first time.
He tweeted saying "I just rode a dolphin!!!!"
Europe’s Planck spacecraft found evidence that our universe is 13.8 billion years old.
The world’s largest postage stamp was released.
The Mother of Emirates postage stamp entered the Guinness World Records after being measured at 1.36 x 1.77 meters.
The first ever Tweet was published on Twitter.
Jack Dorsey, the founder of Twitter, wrote the first tweet. His first message was posted at 09:50 on this day and said "just setting up my twttr."
Central Park designated a section of its grounds as “Strawberry Fields” to commemorate John Lennon, who was shot dead in his nearby residence.
Alcatraz prison in San Francisco Bay closed its gates for good.
The choice came after 20 years of concerns of the costs to keep the prison running and the way prisoners were treated.
English Novelist George Eliot completed her famous book called “The Mill on the Floss.”
The First Zoological Society in the US was formed in Philadelphia.
Between 100 and 3000 Jews were killed in riots in The Erfurt Massacre in the town of Erfurt, Germany.
Jews were often blamed for Europe's Black Death and many Jews set fire to their own homes, opting to die in the flames rather than being lynched by mobs.