[Secret Agent Man]

https://en.m.wikipedia.org/wiki/Timeline_of_abolition_of_slavery_and_serfdom

Start at the year 1775 where it starts mentioning the colonies/states.

[jeffersondem]

“Start at the year 1775 where it starts mentioning the colonies/states.”

OK, I did.

There is nothing there to support your earlier claim: “When the revolutionary war started, seven northern colonies wound up declaring slavery illegal and done.”