American English Take-Home Exam
The sense
of "individualist, unconventional person" was first recorded 1886.
OK – The orgin of the super popular Americansim OK is widely disputed. There is a theory that
OK was first used by Andrew Jackson, the seventh president of the United States. According to
another theory, the term came from the election slogan by the O.K. Club, boosters of Martin Van
Buren's 1840 re-election bid, referencing to his nickname Old Kinderhook. Third theory is that
OK was spelled out as okeh in 1919 by Woodrow Wilson, supposedly representing Chocotaw
okeh “it is so”. However, the earliest known usage of OK is from 1839. One explanation is that
was the survivor of a slang fad in Boston and New York where abbreviations of common phrases
were deliberately misspelled (O.K. – “oll correct”). Second explanation is from the French
expression “au quai” (“to the quay”) which was used when merchandise was finally ready to ship
annaabi.ee 
