2019

All events that happened in 2019.

January

 * 6th: "Mad About the Toy" aired for the first time.
 * 13th: "The Girl on the Bus" aired for the first time.

February

 * 6th: Trista H. Navarro, animation production manager, died.
 * 10th: "I'm Dancing as Fat as I Can" aired for the first time.
 * 17th: "The Clown Stays in the Picture" aired for the first time.

March

 * 3rd: "101 Mitigations" aired for the first time.
 * 4th: Luke Perry, actor and guest star, died.
 * 10th: "I Want You (She's So Heavy)" aired for the first time.
 * 17th: "E My Sports" aired for the first time.
 * 20th: The Walt Disney Company has completed the acquisition deal with 21st Century Fox, leaving 20th Century Fox became a unit of The Walt Disney Studios and The Simpsons is now a Disney property.
 * 24th: "Bart vs. Itchy & Scratchy" aired for the first time.
 * 31st: "Girl's in the Band" aired for the first time.

April

 * 7th: "I'm Just a Girl Who Can't Say D'oh" aired for the first time.
 * 28th: "D'oh Canada" aired for the first time.

May

 * 5th: "Woo-hoo Dunnit?" aired for the first time.
 * 12th: "Crystal Blue-Haired Persuasion" aired for the first time.
 * Season 30 ended.
 * 14th: Tim Conway, actor and guest star, died.

June

 * 6th: Dr. John, pianist for "I Love to See You Smile", died.

July

 * 1st: Dennis Snee, writer of "Special Edna", died.
 * 26th: Russi Taylor, voice actress, died.

August

 * 30th: Valerie Harper, actress and guest star, died.

September

 * 22nd: Homer Simpson, appeared on the 2019 Emmy Awards.
 * J. Michael Mendel, former producer, died.
 * 29th: Season 31 started
 * "The Winter of Our Monetized Content" aired for the first time.

October

 * 5th: "Go Big or Go Homer" aired for the first time.
 * 11th: Robert Forster, actor and guest star, died.
 * 13th: "The Fat Blue Line" aired for the first time.
 * 20th: "Treehouse of Horror XXX" aired for the first time.
 * 26th: Robert Evans, producer and guest star, died.

November

 * 3rd: "Gorillas on the Mast" aired for the first time.
 * 10th: "Marge the Lumberjill" aired for the first time.
 * 17th: "Livin La Pura Vida" aired for the first time.
 * 24th: "Thanksgiving of Horror" aired for the first time.

December

 * 1st: "Todd, Todd, Why Hast Thou Forsaken Me?" aired for the first time.
 * 15th: "Bobby, It's Cold Outside" aired for the first time.
 * 27th: Jack Sheldon, trumpeter and guest star, died.