According to Hanna-Barbera, Pebbles Flintstone was born at the Bedrock Rockapedic Hospital at 8 p.m. on February 22, 10,000 B.C., weighing in at 6 pounds, 12 ounces. She premiered on TV on her 11,963rd birthday—in the February 22, 1963, Flintstones episode “The Blessed Event.”
As an infant, Pebbles quickly became lifelong best friends with her next-door neighbor, Bamm-Bamm Rubble.
By the time she was a teenager, Pebbles was noted for getting Bamm-Bamm and their friends into various misadventures, mostly due to sharing her dad’s penchant for schemes that would inevitably backfire (such as causing a strike by Bedrock’s city employees when she was elected honorary mayor for a week. She and her friends attended Bedrock High School; Pebbles had a catchphrase similar to her father’s: “Yabba-Dabba-Doozie!”
As an adult, Pebbles pursued a career in advertising and married Bamm-Bamm. After this, the newly married couple moved to Hollyrock, a fictional, prehistoric version of Hollywood, California. They eventually had a son named Chip and a daughter named Roxy, who were fraternal twins.
Incidentally, the question of Pebbles’s birthdate is a favourite of TV game shows: It’s been asked on both Who Wants to Be a Millionaire? and Jeopardy!