Happy 40th birthday, SpongeBob! 🥳 Debuting in 1999, SpongeBob SquarePants follows the whimsical underwater misadventures of an optimistic sea sponge living in Bikini Bottom. The series centers on his daily exploits alongside his top companions: Patrick Star, Squidward Tentacles, Mr. Krabs, Sandy Cheeks, and the plotting Plankton. #spongebob #spongebobmemes #nickelodeon #90s #nostalgia