It was ratified by the final 5 holdout states upon agreement of the Bill of Rights, which were a requirement for their ratification of the Constitution.
Did you avoid reading the history or something? Bill of Rights were born from the Ratification dispute in 1787.
Edit: I didn't notice, but you also got the Bill of Rights ratification wrong. It was 1791.
Huh? The constitution as it is written today was established in 1789 when the necessary number of states approved it.
The bill of rights was not ratified until 1792. Washington was president for 3 years by then.
So...no?