1999

Events that happened in the year 1999.

• Next: 2000

May

• 1-SpongeBob SquarePants premiered on Nickelodeon as a lead-out to the 1999 Kids' Choice Awards, with the episodes Help Wanted, Reef Blower and Tea at the Treedome being the first to be aired.

July

• 17-
  • SpongeBob SquarePants aired regularly on Nick for the first time.
  • The episodes Bubblestand and Ripped Pants aired on Nick.
• 24-"Help Wanted", "Reef Blower" and "Tea at the Treedome" aired regularly on Nick for the first time.
• 31-The episodes Jellyfishing and Plankton! aired on Nick.

August

• 7-The episodes Naughty Nautical Neighbors and Boating School aired on Nick.
• 14-The episodes Pizza Delivery and Home Sweet Pineapple aired on Nick.
• 21-The episodes Mermaid Man and Barnacle Boy and Pickles aired on Nick.
• 28-The episodes Hall Monitor and Jellyfish Jam aired on Nick.

September

• 11-The episodes Nature Pants and Opposite Day aired on Nick.
• 17-
  • The episodes Sandy's Rocket and Squeaky Boots aired on Nick.
  • "Help Wanted," "Reef Blower" and "Tea at the Treedome" aired on ABC.
• 18-
  • The episodes Culture Shock and F.U.N. aired on Nick.
  • "Bubblestand," "Ripped Pants" and "Jellyfishing" aired on ABC.
• 28-"Plankton!" aired on ABC.

October

• 2-The episodes MuscleBob BuffPants and Squidward the Unfriendly Ghost aired on Nick.
• 4-"Naughty Nautical Neighbors" and "Boating School" aired on ABC.
• 8-"Pizza Delivery" and "Home Sweet Pineapple" aired on ABC.
• 28-The episodes Scaredy Pants and I Was a Teenage Gary aired on Nick. They are notable for being the first-ever Halloween episodes of SpongeBob and the first SpongeBob holiday episodes of any kind.

December

• 31-The episodes SB-129 and Karate Choppers aired on Nick.

Years