Historical clue formulations

• "No cap" — 2026-07-10
• "omg rly?!" — 2026-07-03
• "r u kidding?!" — 2025-01-06
• "r u 4 real?" — 2024-10-07
• Texter's "For real?" — 2024-07-05
• "ur joking, right?!" — 2022-10-12
• "r u 4 real?" — 2022-07-31
• "4 real?!?" — 2022-05-07
• "Really?," in textspeak — 2021-10-05
• "r u 4 real?" — 2018-07-01
• "Are you kidding me?," in texts — 2018-05-24
• Possible "OMG!" follow-up — 2016-02-13