All correct

So apparently some fancy-schmancy s gloat discovered that the origin of "Ok" is not from a town- as previously thought for some reason.

Back in the day (I will leave the day picking up to you), people would change the spelling of words to fit themselves- or to spell things as they saw fit. So, when a teacher would grade a paper- they would write "all correct" so it was made clear the students paper was- correct.
But, as kids will be kids, they had to shorten that even- and change it to a slang term.
Hence, OKAY/ ok.

Just thought I would let you know and become smarter.