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".
The People's Republic of China will be 76 years old this October.
The OP is wrong because there are a few existing nations older than 250 years, but there aren't many of them. As far as countries go, the United States is over the hill.
Its nonsense. China as a national and cultural entity is not 76 years old. Changing constitutions does not make it a different country, it is only americans who adhere to that belief system because their country didnt exist prior to their constitution.