Before Birth Certificates, Age was Basically a guess. Here's why

Описание: You know your exact age instantly, without thinking. For most of human history, that wasn’t a fact — it was a guess, a negotiation, or a party loud enough for three hundred witnesses to remember.

This video traces the real, surprisingly recent history of how humans figured out how old anyone actually was before birth certificates existed — from ancient societies anchoring age to events like floods and famines, to a twelve-year zodiac cycle used across Asia, to Roman censuses that cared more about who could carry a spear than who was thirty-one versus thirty-four. It covers coming-of-age ceremonies like the bar mitzvah and quinceañera, ancient Chinese household registers, a 7th-century Islamic pension system, and the England law from 1538 that started the modern paper trail.

It ends somewhere genuinely wild: the 1935 Social Security rollout that revealed millions of older Americans had zero proof of their own age — and the fact that right now, doctors still estimate age using teeth and bone development when no records exist at all.

If you’ve ever wondered how anyone proved how old they were before a laminated card did it for you, this one’s for you.
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