September 21

==Television==
*2005: Maggie and the Ferocious Beast airs for the last time on Nickelodeon.
*2018: Zack and Quack airs for the last time on the Nick Jr. Channel.
===Episode premieres===
Year	Show 	Episode(s)
1990	Hey Dude 	"Magnum Ernst"
1994	Legends of the Hidden Temple 	"The Mush Pot Hat of Johnny Appleseed"
1998	Rugrats 	"The Family Tree"
1999	The Wild Thornberrys 	"Stick Your Neck Out"
2001	SpongeBob SquarePants 	"Sailor Mouth" / "Artist Unknown"
2001	Invader Zim 	"Bolognius Maximus" / "Game Slave 2"
2001	The Fairly OddParents 	"Mighty Mom and Dyno Dad" / "Knighty Knight" (Australia)
2002	Rugrats 	"Happy Taffy" / "Bug Off" (season premiere)
2002	All That 	"B2K" (season premiere)
2005	The Backyardigans 	"Polka Palace Party"
2007	The Backyardigans 	"Best Clowns in Town"
2007	El Tigre: The Adventures of Manny Rivera	"La Tigressa" / "The Curse of the Albino Burrito"
2007	Avatar: The Last Airbender 	"The Awakening"
2011	Bubble Guppies 	"Can You Dig It?"
2015	Fresh Beat Band of Spies 	"Frozen Fresh Beats"
2016	The Loud House 	"A Tattler's Tale"
2017	The Loud House 	"No Laughing Matter"
2017	Sunny Day 	"Top Dog"
2017	Welcome to the Wayne 	"A Pair of Normas"
2018	PAW Patrol 	"Ultimate Rescue: Pups Save the Movie Monster!"
2018	I Am Frankie 	"I am...an Android"
2019	SpongeBob SquarePants 	"SpongeBob in RandomLand" / "SpongeBob's Bad Habit"
2019	Thomas & Friends 	"Digs & Discoveries: All Tracks Lead to Rome"
2022	Santiago of the Seas 	"Comet Cupcakes"
2022	NFL Slimetime 	"Week 2"
2022	Nick News 	"Self-Image, Space & the Sea"
2023	The Loud House 	"Sponsor Tripped"
2024	Peppa Pig 	"Racquet Games"
==Home video==
*1993: The Ren & Stimpy Show: Have Yourself a Stinky Little Christmas VHS
*2010: Max & Ruby: Everybunny Loves Winter! DVD
*2021: Baby Shark's Big Show! DVD
==Comics==
*2016: Invader Zim #13
==Books==
*2004: SpongeBob Exposed!: The Insider's Guide to SpongeBob SquarePants
==Albums==
*1993: Ren & Stimpy's Crock o' Christmas
==People==
===Births===
*1935: Henry Gibson
*1992: Becky Robinson
September 21