Answer:
Constitution
Step-by-step explanation:
When the Unassigned Lands were opened in 1889 within the Indian Territory the western portion of present Oklahoma was created and named “Oklahoma Territory” and on November 6th of 1806 they elected delegates to form the Constitutional Convention, 55 delegates were elected and they started to draft the constitution of the state of Oklahoma. On September 17th the Oklahoma Constitution was approved by 71% of the votes.