May 21

==Television==
*1989 - The Chip 'n Dale Rescue Rangers episode "Parental Discretion Retired" premieres on Disney Channel.
*2000 - The PB&J Otter episodes "Hoohaw is Where the Heart Is/Everything in its Place" premiere on Playhouse Disney.
*2004
**The Kim Possible episode "Motor Ed" premieres on Disney Channel.
**The That's So Raven episode "Spa Day Afternoon" premieres on Disney Channel.
*2010 - The Wizards of Waverly Place episode "Alex's Logo" premieres on Disney Channel.
*2011 - The Jake and the Never Land Pirates episodes "Birds of a Feather/Treasure Show and Tell!" premiere on Disney Jr.
*2012
**The Imagination Movers episode "Scott and the Beanstalk" premieres on Disney Jr.
**The Motorcity episode "Texas-ify It!" premieres on Disney XD.
*2016 - The 7D episodes "Nicely Done and The 7D/Take Me to Your Grumpy" premiere on Disney XD.
*2018 - The Miles from Tomorrowland episodes "Saving Silas/Attack of the Arachno-Bots" premiere on Disney Jr.
*2021
**The T.O.T.S. episodes "Home Tree Home/Copy Cat" premiere on Disney Channel.
**The Chicken Squad episodes "Gone to the Dogs/Coop Dreams" premiere on Disney Jr.
**Raven's Home concludes its fourth season on Disney Channel with the episodes "Saved by the Belle" and "So You Think You Can Drive".
*2022 - The Owl House episode "Clouds on the Horizon" premieres on Disney Channel.
*2023
**The Raven's Home episode "A.I., A.I., Oh… Snap!" premieres on Disney Channel.
**Bunk'd concludes its sixth season on Disney Channel with the episode "Desperate Treasures".
==Home media==
*1985 - Walt Disney Cartoon Classics Limited Gold Edition II: Donald's Bee Pictures, The World According to Goofy, The Disney Dream Factory: 1933-1938, An Officer and a Duck, How the Best Was Won: 1933-1960, and From Pluto with Love
*2002 - Out Cold
*2013
**My Neighbor Totoro
**Mickey Mouse Clubhouse: Quest for the Crystal Mickey
==Streaming==
*2021
**Season 2 of Big City Greens is added to Disney+.
**The Star Wars: The Bad Batch episode "Cornered" premieres on Disney+.
**M.O.D.O.K. premieres on Hulu.
**The High School Musical: The Musical: The Series episode "Typecasting" premieres on Disney+.
==Video games==
*2002 - Return to Never Land is released for the Game Boy Advance.
==Character debuts==
*2004 - Motor Ed/Edward Lipsky, Felix Renton
==People==
===Births===
*1914 - John Hubley † (artist, animation director, art director, producer, and writer)
*1916 - Dennis Day † (singer and actor)
*1933 - Richard Libertini † (actor and voice actor)
*1949 - Will Ryan † (voice actor, singer, and musician)
*1952 - Mr. T (actor)
*1957 - Judge Reinhold (actor)
*1987 - Ashlie Brillault (actress and lawyer)
*1992 - Olivia Olson (actress, voice actress, and singer-songwriter)
*1997 - Kevin Quinn (actor and musician)
===Deaths===
*2005 - Howard Morris (actor, voice actor, and director)
*2023 - Ray Stevenson (actor and voice actor)
pt-br:21 de Maio
Category:Days in Disney history