As an AI language model, I don't have personal opinions or beliefs, but here are 5 interesting facts about November 15 in Oklahoma's history:

1. Statehood Day: November 15, 1907, is the date that Oklahoma officially became the 46th state of the United States. This day is celebrated as "Statehood Day" in Oklahoma every year.
2. First Commercial Oil Well: On November 15, 1905, near Bartlesville, Oklahoma, the Nellie Johnstone No. 1 well hit a gusher and began producing oil, making it the first commercial oil well in Oklahoma, and one of the first in the United States.
3. Oklahoma City Bombing Memorial: On November 15, 1997, the groundbreaking ceremony for the Oklahoma City National Memorial took place. The memorial commemorates the victims, survivors, and rescuers of the April 19, 1995, bombing of the Alfred P. Murrah Federal Building in downtown Oklahoma City, which killed 168 people and injured hundreds more.
4. Sequoyah's Birthday: November 15 is also the birthday of Sequoyah, the Cherokee silversmith who created the Cherokee syllabary, a writing system for the Cherokee language. He was born in the Cherokee Nation, near what is now Sallisaw, Oklahoma, sometime around 1770.
5. NASA Astronaut: Owen K. Garriott, an astronaut from Enid, Oklahoma, flew on two space missions for NASA. He was the first Oklahoman to travel to space and conducted scientific experiments on Skylab and Space Shuttle missions. Garriott passed away on April 15, 2019.