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The word 'OK,' originating from a satirical 1839 article as 'oll korrect,' gained popularity during Martin Van Buren's 1840 presidential campaign. Adopted globally, 'OK' now universally signifies ...

Tulsa, Oklahoma, the state's second-largest city, was officially incorporated in 1898, but traces its roots back to 1836, when it was established as a settlement by ...