November 21st is also known as Red Mitten Day as well as World Hello Day.
Today marks the 325th day of the year. We now have only 40 days remaining in 2025.
From discoveries and inventions to war and disaster, November 21st in history has it all – and we’ve put it all together in one place for you.
Did you know that on this day, November 21, 1931, the movie “Frankenstein,” based on Mary Shelley’s 1818 novel, was released? She began writing the novel when she was only 18 years old and, at first, released it anonymously.
Keep reading for more fun & interesting facts about November 21st in history!
Historical Events
What memorable events happened on November 21 in history? Keep reading to find out!
Elon Musk revealed Tesla’s first electric cyber truck with shatterproof windows.
However, at the grand reveal, when the shatterproof windows were tested by being repeatedly hit by the design chief Franz von Holzhausen, the windows shattered. After a reassuring speech by Musk, the cyber truck did not live up to expectations, so Tesla's share price plummeted by 6%.
The Legend of Zelda: Ocarina of Time was released in Japan for the N64.
With a budget of over $12 million, Ocarina of Time was always going to impress. That said, even the developers couldn't have foreseen the legendary status it attained: the highest ranking game of all time on Metacritic.
Danish astronomer Ole Rømer presented the first measurements of the speed of light.
Whether light traveled at a finite speed had been the subject of debate for centuries already, and Rømer believed he had finally cracked it, to some degree at least. He presented his findings, based on calculations of when Jupiter's moon Io would be eclipsed, to Paris's Royal Academy of Science.
Famous Births
Is today your birthday? If so, you share the same birthday with Carly Rae Jepsen. Here are a few other famous people born on this day.
1992
Conor Maynard
English Singer
Age
33 years old
Born IN
England, UK
1985
Carly Rae Jepsen
Canadian Singer
Age
40 years old
Born IN
British Columbia, Canada
2000
Isabel May
American Actress
Age
25 years old
Born IN
California, USA
1965
Björk
Icelandic Singer
Age
60 years old
Born IN
Reykjavík, Iceland
1694
Voltaire
French Writer
Died On
May 30, 1778 (Age 83)
Born IN
Paris, France
Birthday & Zodiac
People who were born on this day share the Scorpio zodiac sign.
Scorpios make fantastic friends and lovers because they’ll always have your back! They go out of their way to protect and defend the people they are closest to.
Those of you that were born in November have the Topaz birthstone. The ancient Greeks believed that topaz could make a wearer invisible.
If your birthday falls on this day, you would’ve likely been conceived around February 28 in the same year.
A baby that is conceived on this day will likely be due around August 14, 2026.
Quotes
What is your favorite quote from November 21? Here are the most noteworthy quotes said on this day throughout history.
1997
“It is in the character of growth that we should learn from both pleasant and unpleasant experiences.”
Nelson Mandela
(South African President)
Special Holidays
If you've got a few minutes spare today, why not celebrate these special holidays.
Canada
National Red Mitten Day
Listen up, Canadians, as today is all about you - or your athletes, at least! A portion of the profit from every red mitten sold today will go towards Canada’s Olympic athletes, so make sure you stock up on mittens for the whole family and wear them with pride!
World
World Hello Day
If everyone just tried to say hello to each other and communicate better, the world would be a much better place! That’s the principle behind World Hello Day, anyway. Reach out to people you’ve had disagreements with and say hello; you never know how it’ll go!
Fact Of The Day
Days Until
Your countdown to 2025's upcoming special days!
-
Thanksgiving
6 days
-
Black Friday
7 days
-
Cyber Monday
10 days
-
Human Rights Day
19 days
-
Christmas Day
34 days
-
New Year's Day
41 days