This is not exactly true. As an Okie, I can confirm only part of what you say. Oklahoma became a state in 1907. However, it has existed in its largely intact form for much longer. My grandmother lived here when it was Indian Territory and they lived on Chief John Ross' land over by Tahlequah. My ggrandfathers made the run into Oklahoma in 1889. However, the shape of the state and the land it encloses has remained approximately the same since the Indian removal here in the early 1800's. As we Okies like to say, Baja Oklahoma (also known as Texas) was once part of us--not vice versa! (smile)