OK?

So just where does this ubiquitous expression come from?  There are so many theories that it makes your head spin.  What seems pretty well accepted it that it originated in America in the early to mid-1800s (even as recently as my childhood it was considered "American slang" in this country and frowned upon) and the best guess is that it was somehow associated with a democratic presidential candidate called Martin Van Buren, who had the nickname "Old Kinderhook" and his supporters were referred to as the "OK Club".  His opponents put about the idea that OK stood for "Orl Korrect" - the inference being that Van Buren and his followers were illiterate.  Van Buren didn't get elected, but OK started to appear in everyday speech to signify general acceptance of whatever was being discussed.