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Explanation:

From 1879 to 1888 a series of highly publicized boomer raids led by adventurers such as David L. Payne and William Couch broke the quiet of the Unassigned Lands. Typically, the boomers eluded cavalry units and staked their claims to land at sites such as the future towns of Oklahoma City and Stillwater, but each time, they were arrested and escorted out of the territory. In large part due to that constant promotion, compounded by the lobbying power of the Santa Fe Railway Company, Congress opened the Unassigned Lands to non-Indian settlement on April 22, 1889. A little more than one year later, on May 2, 1890, Congress created the Oklahoma Territory, which concluded the life of the area briefly and unofficially known as the Unassigned Lands.

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explanation:

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