1. The first state fair in Nebraska was held on September 6, 1869, in Nebraska City. It lasted for three days and featured livestock exhibitions, horse races, and other competitions.

2. On September 6, 1901, William Jennings Bryan, a prominent politician and orator from Nebraska, made his famous "Cross of Gold" speech at the Democratic National Convention in Kansas City. The speech, which called for free silver and a populist economic agenda, helped catapult Bryan to national prominence.

3. The Lincoln Highway, the first transcontinental highway in the United States, officially opened on September 6, 1913. The highway, which stretched from New York to San Francisco, passed through several Nebraska cities, including Omaha, Kearney, and North Platte.

4. Nebraska native Johnny Goodman won the U.S. Open golf championship on September 6, 1933, becoming the first amateur golfer to win the championship since 1913. Goodman, who worked as a caddie at the Omaha Country Club, was only 22 years old when he won the title.

5. Nebraska's current state flag was adopted on September 6, 1963, after a design contest was held to replace the previous flag, which had been in use since 1925. The winning design, created by a University of Nebraska professor, features the state seal on a blue background with the words "Nebraska" and "March 1, 1867" written in gold.