What does "Oregon" mean?
The origin of the state name is uncertain, but "Oregon" might have been derived from a 1715 French map which refers to the Wisconsin River as "Ouaricon-sint." All State Name Origins
Another opinion is that the name "Oregon" stems from an English army officer's proposal for a trip in 1765, in which he refers to "the River called by the Indians Ouragon." Oregon was admitted as the 33rd state on February 14, 1859.