1890s
- May 2, 1890
Oklahoma Territory was organized from the western portion of Indian Territory, and included the Neutral Strip, and corresponded to the western half of present-day Oklahoma.
- July 3, 1890
Idaho Territory was admitted as the 43rd state, Idaho.
- July 10, 1890
Wyoming Territory was admitted as the 44th state, Wyoming.
- July 4, 1894
The Kingdom of Hawaii became the Republic of Hawaii.
- January 4, 1896
Utah Territory was admitted as the 45th state, Utah.
- May 4, 1896
A Supreme Court ruling officially assigns Greer County to Oklahoma Territory.
- August 12, 1898
The Republic of Hawaii was annexed by the United States.
Read more about this topic: Territorial Evolution Of The United States