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"No nation is older than 250"
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Transcript
A threads post saying "There has never been another nation ever that has existed much beyond 250 years. Not a single one. America's 250th year is 2025. The next 4 years are gonna be pretty interesting considering everything that's already been said." It has a reply saying "My local pub is older than your country".
Edit: swapped image link, RIP lemm.ee
Original link: https://lemm.ee/pictrs/image/b4d2f599-1922-4978-9db3-fc7832681c10.png
That is not what defines its existence as a country though. If so then the US only dates to the 1990s with its latest constitutional amendment.