There was no centennial for Indian Territory

[Louisiana1976]

All of the tribes experienced a Trail of Tears due to the forced relocations; some were more or less severe. However, regardless of their differing severity, the forced relocations were all part of the U.S. extermination policy, or genocide, to solve their "Indian Problem." The "problem" in Indian Territory was that the tribes who were forced to relocate under conditions that significantly reduced their population through extermination or starvation, some in harsh winter conditions, was that they survived the forced relocations at all. Hence, a "solution" was needed to insure white domination in Indian Territory. Henry Dawes and his Dawes Act fueled by racism, denial of joint statehood, and a cruel "wedding" fusing Indian Territory with the State of Oklahoma all contributed to Oklahoma's Statehood through the elimination of many tribal lands and the great diminishment or total elimination of tribal political influence.

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http://www.dailykos.com/story/2009/12/13/813687/-There-Was-No-Centennial-for-Indian-Territory