Oklahoma

• The nation's first parking meter was installed in Oklahoma City in 1935.

• Boise City, Okla., was the only city in the United States to be bombed during World War II. On Monday, July 5, 1943, at 12:30am., a B-17 Bomber based at Dalhart Army Air Base, Texas, dropped six practice bombs on the sleeping town, mistaking the city lights as target lights.

• Per square mile, Oklahoma has more tornadoes than any other place in the world.