1999

All real-world events relating to the universe that occurred in 1999.

January

 * January 31 – aired for the first time.
 * Season 1 of started.

March

 * March 17 – Rod Hull died.

April

 * April 7 – Conner Rayburn was born.
 * April 9 – Isaac Hempstead Wright was born.
 * April 11 – aired for the first time.
 * April 18 – aired for the first time.
 * April 25 –  aired for the first time.

May

 * May 2 – aired for the first time.
 * May 9 – aired for the first time.
 * May 16 –  aired for the first time
 * Season 1 of ended.

August

 * August 27 – Sage Ryan was born.

September

 * September 23 –  aired for the first time.
 * Season 2 of started.


 * September 30 – aired for the first time.

October

 * October 6 – Will Shadley was born.
 * October 16 – Jean Shepherd died.

November

 * November 10 – Mary Kay Bergman died.
 * November 11 – Kiernan Shipka was born.

December

 * December 12 – Ted Zeigler died.
 * December 14 – Karley Scott Collins was born.
 * December 26 – aired for the first time.