Here are 5 interesting facts about October 31 in Oklahoma history:

1. In 1910, the first Oklahoma State Fair was held in Oklahoma City on October 31. The fair showcased the state's livestock, agriculture, horticulture, and industry and has been an annual tradition ever since.

2. On October 31, 1931, the Clovis Comet passed over Oklahoma, creating a spectacular display in the night sky. The comet, which was visible for several weeks, was named after the town of Clovis, New Mexico, where it was first spotted.

3. Halloween is a popular holiday in Oklahoma, with many communities hosting parades, festivals, and other events on October 31. One of the biggest Halloween events in the state is the Haunted House at the Myriad Gardens in Oklahoma City, which draws thousands of visitors each year.

4. On October 31, 1991, the Oklahoma City Thunder played their first game as an NBA franchise. The Thunder, then known as the Seattle SuperSonics, lost to the Los Angeles Lakers in their debut game in front of a home crowd at the Seattle Center Coliseum.

5. In 2005, the Oklahoma State Capitol was reopened to the public on October 31 after a major renovation project that lasted nearly a decade. The $120 million project included upgrades to the building's electrical and mechanical systems, as well as the restoration of many of the Capitol's historic features.