1. On December 5, 1803, Ohio became the 17th state in the United States of America. This was after the Ohio Territory, which included parts of present-day Ohio, Indiana, and Michigan, was established in 1787.

2. One of Ohio's most famous landmarks, the Ohio Statehouse, was completed on December 5, 1861. Designed by architect Nathan B. Kelley, the building features a distinctive dome and Greek Revival architecture.

3. In 1953, the first successful open-heart surgery in Ohio was performed by Dr. Richard Lower at The Ohio State University College of Medicine. The procedure was groundbreaking and paved the way for future advancements in heart surgery.

4. The Cleveland Browns, one of Ohio's beloved football teams, played their first game on December 5, 1946. The team has won multiple championships and has a dedicated fan base.

5. Ohioan Annie Glenn, the wife of former astronaut and United States Senator John Glenn, celebrated her 100th birthday on December 5, 2020. Annie Glenn was known for her advocacy work on communication disorders and her dedication to her husband's political career.