Although people will use this word hundreds of times a week to indicate whether things are ok or not, few people may explore the history of this word. In fact, the history of this word is not long. It was first recorded in 1839, but there is no doubt that this word has been used in circulation before this. There have been many studies on the origin of the word OK, among which alan walker Reid finally confirmed that OK originated from a joke. Someone pronounced the phrase all correct as oll (or orl) correct, this person or others spelled it as oll korrect, and finally abbreviated it as OK. This word was used as a political propaganda slogan in 1840 by Martin Van Buren, a Democratic presidential candidate from Kinderhook, New York. He was born in Alder Kinderhook, new york, and used the first two letters of this place name as his campaign slogan, meaning "successful election". It also made OK famous. In the same year, an editorial commented on the pin with the OK slogan: "Terrible letters are not only important to explain Martin Van Buren's birthplace in Kinderhook, New York, but also an attractive political propaganda slogan of the Democratic Party in the recent general election. "everything is fine" ... those who don't wear these pins should also be very clear that it takes them long-term unremitting efforts to make everything satisfactory. "

When Americans agree or approve something, they often say ok, which means OK, OK, not bad. This term was originally used by American railway switchmen.

When they are on duty, if everything is normal on the railway, they are all right, that is, completely normal. Because All sounds are close to O, and O, correct sounds are close to K, for convenience, workers omit reading o K to express the same meaning. Later, the meaning of the word evolved continuously, and now it not only refers to good, good and good, but also includes the meaning of agreeing with and acknowledging other people's opinions. It is also used for signing, expressing agreement and approval.