Question

The Organic Act of 1890 defined Oklahoma Territory and the boundaries of Indian Territory. What role did it play in deciding the fate of the State of Sequoyah?

Answer 1

Oklahoma joined with the proposed state of Sequoyah
The Indians failed to secure congressional approval for the creation of the states and a compromise saw the proposed state combined with Oklahoma. the compromise was spearheaded by T.Roosevelt.

Answer 2

The Organic Act did not formally recognize Indian Territory.

An Organic Act is the name given to a statute utilized by the United States Congress to describe a territory, in anticipation of being admitted to the Union as a state.  

The Organic Act created Oklahoma Territory, and Indian Territory that were Organized incorporated territories of the United States out of the old "unorganized" Indian Territory.