1. In 1910, the first flight of an airplane in Oklahoma was achieved by aviators Charles K. Hamilton and F. Clinton Jones.
2. In 1965, a major tornado outbreak occurred in Oklahoma, with 13 tornadoes touching down and causing significant damage in many areas.
3. In 1908, Oklahoma Territory and Indian Territory were merged to become the state of Oklahoma, with May 16th designated as the official statehood day.
4. In 1977, the Oklahoma City bombing occurred, killing 168 people and injuring over 600 others. The attack remains one of the deadliest domestic terrorist incidents in United States history.
5. In 2013, the devastating EF5 tornado struck Moore, Oklahoma, killing 24 people and causing widespread destruction. The tornado was estimated to have had wind speeds of up to 210 mph.