I would like to know the list of U.S. states by date of admission to the United States.
user
Let me check that.  Did you mean to say “U.S. states by date of admission to the Union”?  Or the “U.S. States as they exist today”?
assistant
I would like to know the list of U.S. states by date of admission to the United States.
user
The list of states in the Union can be found here.
assistant
I would like to know the list of U.S. states by date of admission to the United States.