1) On August 17, 1907, the first state Capitol building in Oklahoma City was completed. It was a three-story, classical-style building that served as the seat of the state government until 1917.

2) On August 17, 1959, the first tornado warning system in Oklahoma was put into operation by the National Severe Storms Laboratory. The system used radar to detect storms and issue warnings to the public, revolutionizing tornado preparedness.

3) On August 17, 1969, the Oklahoma City bombing occurred at the Woodson Park Recreation Center. The bombing was a racially motivated act of terrorism against a predominantly Black community, and it killed one person and injured seven others.

4) On August 17, 1970, the Muscogee Nation of Oklahoma became the first Native American tribe to operate its own hospital. The Muscogee Nation Medical Center has since become a leading healthcare provider in the state.

5) On August 17, 2016, the groundbreaking ceremony for the new Oklahoma City Boulevard was held. The project aimed to improve access to the city’s downtown area, and it included the construction of a new bridge that spans the Oklahoma River.