April 21st Events & Coupons

Auctions, Pop Ups and Marketplaces See All

Netflix Bites MGM Grand Las Vegas
Pop Ups and Vendor Markets | Feb 11, 2025 - Feb 20, 2026
United States > Nevada > Las Vegas > > 89109

Conventions, Live Shows and Fairs See All

Jaws: The Exhibition at The Academy Museum Celebrates 50th Anniversary of Iconic Killer Shark
Memorabilia Exhibition | Sep 14, 2025 - Jul 26, 2026
United States > California > Los Angeles > > 90036
Barbie to Anna Karenina: The Cinematic Worlds of Sarah Greenwood and Katie Spencer Exhibition at the Academy Museum
Memorabilia Exhibition | May 23, 2025 - Oct 25, 2026
United States > California > Los Angeles > > 90036

Milestones See All

Jaws: The Exhibition at The Academy Museum Celebrates 50th Anniversary of Iconic Killer Shark
Memorabilia Exhibition | Sep 14, 2025 - Jul 26, 2026
United States > California > Los Angeles > > 90036

April 21st In History

Auctions, Pop Ups and Marketplaces See All

Windy City Pulp and Paper Convention
Comic Cons | Apr 21 - Apr 23, 2023
United States > Illinois > Lombard > > 60148

Contests and Giveaways See All

Enter the My Nintendo Universal Epic Universe Super Nintendo World Sweepstakes
Gaming Contests | Mar 4 - Jun 30, 2025
United States > Florida > Orlando > > 32819

Firsts, Starts and Openings See All

Little Richard: I Am Everything
Television/Streaming Premiere | Apr 21, 2023
Judy Blume Forever
Television/Streaming Premiere | Apr 21, 2023

Fundraisers See All

Interviews See All

Narratives See All

Verne Troyer
Deaths | Apr 21, 2018
Sophie Rundle
Birthdays | Apr 21, 1988

Product Releases See All

Show and Movie Releases See All

Social and Cultural Events See All

FreakNik
Concerts | Apr 19 - Apr 21, 1996
FreakNik
Concerts | Apr 21 - Apr 23, 1995

4-4 Day | Social and Cultural Events | Apr 4

4-4 Day

Social and Cultural Events | Apr 4

Marvel Studios

Marvel Studios used April 4, 2024 as an opportunity to announce the official title of The Fantastic Four: First Steps, coronating April 4th as 4-4 Day. However, the superhero group actually made their first appearance in The Fantastic Four #1, published in Marvel Comics November of 1961. The Fantastic Four was the first superhero team created by artist Jack Kirby and editor/co-writer Stan Lee, and through this title the “Marvel method” style of production was developed.

The four main characters gained superpowers after exposure to cosmic rays during a scientific mission to outer space. The Fantastic Four includes: Mister Fantastic (Reed Richards), the leader and a scientific genius, who can stretch his body into incredible lengths and shapes; the Invisible Woman (Susan “Sue” Storm-Richards), Reed’s wife, who can render herself invisible and project powerful invisible force fields and blasts; the Human Torch (Johnny Storm), Sue’s younger brother, who can generate flames, surround himself with them and fly; and the monstrous Thing (Ben Grimm), a former college football star, Reed’s college roommate and a skilled pilot, who possesses tremendous superhuman strength, durability and endurance due to his stone-like flesh.