When was the U.S. Constitution written?

After The Declaration of Independence. So, after the absolute treason against the Brits. 🤣

Written in 1787, ratified in 1788, and in operation since 1789, the United States Constitution is the world’s longest surviving written charter of government. Its first three words – “We The People” – affirm that the government of the United States exists to serve its citizens.

https://www.senate.gov
Constitution of the United States – Senate.gov