Historical clue formulations

• Feline in a 2000s meme — 2026-07-16
• Early 2000s meme — 2024-04-13
• Meme creature — 2023-08-19
• Creature of the internet — 2023-05-20
• Feline meme since around 2006 — 2022-08-01
• Internet meme with grammatically incorrect captions — 2020-09-20
• Meme feline — 2019-01-17
• Many a feline Facebook posting — 2017-08-29