- Date of Independence: July 4, 1776 (as part of the original 13 colonies declaring independence from Britain)
- Date of Annexation to United States of America (USA): March 1, 1803 (17th state to join the Union)
- Population (2025): 11.94 million
- GDP (2025): $804 billion
- Largest City: Columbus (933,000)
- State Capital: Columbus (933,000)
- Historical Note: Known as the “Buckeye State.” Part of Northwest Territory and Northwest Ordinance of 1787. Birthplace of aviation (Wright Brothers) and home to Presidents Ulysses S. Grant and William McKinley among others. Major industrial center with automotive, steel, and manufacturing. Home to major universities and Rock and Roll Hall of Fame.