OK- is an American expression that means "everything is fine, everything is in order". The Internet is already considered an international word, and this word is used excessively in almost all countries. According to the Global Language Monitor (GLM) Association, OK is the most common and universally accepted word on the planet. O.K .-It was the nickname of Martin Van Bure, the 8th president of the United States of America. Old Kinderhook is O.K < /span> .To support the elections, Martin creates a political group called “The OK Club” .”OK” began to circulate in the language constantly. The birth date of this word is considered to be March 22, 1839. But it was first used in one of the Boston newspapers in 1938. Currently O.K < The word /span> is 172 years old. Martin Van Buren is considered the author of the OK word.