1. On September 29, 1901, the Oklahoma Territory was officially merged with the Indian Territory to form the state of Oklahoma. The merger was authorized by the Organic Act of 1890 and resulted in the creation of a new state with a unique blend of Native American and European American cultures.

2. In 1951, pioneering pilot Jackie Cochran became the first woman to break the sound barrier on September 29 while flying a modified F-86 Sabre jet over California. Cochran, who was born in Muscogee, Oklahoma, went on to set numerous aviation records and helped establish the Women's Airforce Service Pilots (WASP) during World War II.

3. On September 29, 1928, the University of Oklahoma was the site of a historic football game between the Sooners and the University of Texas Longhorns. The game, which was played in front of a crowd of over 70,000 fans, ended in a 13-13 tie and was the beginning of a long-standing rivalry between the two schools.

4. In 1988, Oklahoma City's historic Myriad Convention Center (now known as the Cox Business Center) opened its doors on September 29. The multi-purpose facility has hosted numerous high-profile events over the years, including concerts, sporting events, and political conventions.

5. September 29, 1975, marked the debut of the Oklahoma City Thunder (formerly known as the Seattle SuperSonics) as a professional basketball team in the NBA. Although the team has had its ups and downs over the years, they have remained a popular and beloved team among Oklahoma sports fans.