1. On February 19, 1945, the Battle of Iwo Jima began during World War II. Over 7,000 Marines had been killed in the operation by the time it ended on March 26th.

2. In 1909, the Oklahoma State Board of Agriculture held its first annual Farmers' Week meeting in Stillwater. The conference was one of the first major events aimed at educating Oklahoma farmers on new agricultural techniques and practices.

3. On February 19, 1971, the landmark Supreme Court decision in Reed v. Reed was announced. The decision prohibited discrimination on the basis of sex in state laws and paved the way for future civil rights cases.

4. In 1898, Oklahoma's first public library was established in Shawnee. The Shawnee Public Library is still in operation today and remains an important resource for residents of the community.

5. On February 19, 1982, Oklahoma City-based Heritage Hall School won the state basketball championship. The school has since gone on to win numerous state titles in various sports and has become known for its strong athletic program.