1. Nebraska Statehood Day: September 5, 1867, marks the day when Nebraska became the 37th state in the United States. The state had been a part of the Louisiana Purchase in 1803 and became a territory in 1854 before eventually gaining statehood.

2. Nebraska's First Newspaper: The first newspaper in Nebraska, The Nebraska Palladium, was printed on September 5, 1854. The paper was founded by Dr. William M. Daily and helped to keep early settlers informed about local events.

3. Buffalo Bill's Birthplace: William F. Cody, better known as Buffalo Bill, was born on a farm near Le Claire, Iowa, on February 26, 1846. However, he spent much of his childhood in Nebraska and is often associated with the state. September 5 is the anniversary of his first performance in his Wild West Show in North Platte, Nebraska, in 1885.

4. Nebraska's First Woman Mayor: In 1893, Helen Boosalis was born in Lincoln, Nebraska. She went on to serve as the first woman mayor of Lincoln from 1975 to 1983, and she was also the first woman to be elected president of the U.S. Conference of Mayors in 1980. She passed away in 2009.

5. Nebraska's First Nuclear Power Plant: On September 5, 1974, the Fort Calhoun Nuclear Generating Station became the first nuclear power plant to provide electricity for a public power district in Nebraska. The plant is located near Blair and continues to operate today.