1. On March 30, 1870, the Oklahoma Territory was established by an act of Congress, paving the way for the eventual statehood of Oklahoma.
2. In 1949, a deadly tornado struck the town of Atoka, Oklahoma on March 30, killing 20 people and injuring many others.
3. The United States Supreme Court ruled on March 30, 1992 in the landmark case Oklahoma v. New Mexico, settling a longstanding dispute over water rights of the Canadian River Basin.
4. On March 30, 2005, one of the largest fundraising initiatives in the history of Oklahoma City, the "Maps for Kids" program, was launched to raise money to improve and renovate public schools in the city.
5. Oklahoma-born astronaut and space shuttle commander William Pogue passed away on March 30, 2014 at the age of 84. Pogue made history by spending a record-setting 84 days in space as part of the Skylab 4 mission in 1973.