1. Maryland is known to have celebrated the first All Saints' Day on November 1, 1781. This was just days after the British defeat at Yorktown and marked the first national celebration of All Saints' Day in the United States.

2. On November 1, 1842, the first train tunnel in America was completed in Maryland. The Thomas Viaduct, which spans the Patapsco River, connected Baltimore and Washington D.C., ushering in a new era of transportation for the state.

3. Maryland hosted the world's first recorded intercollegiate football game on November 1, 1869. The matchup took place between Princeton and Rutgers in New Brunswick, New Jersey, with Rutgers emerging as the victors.

4. November 1, 1875 marked the opening of the Johns Hopkins University, considered one of the world's leading research institutions. The school, located in Baltimore, was founded with a gift from merchant and philanthropist Johns Hopkins and has since become known for its pioneering work in medicine and other fields.

5. On November 1, 1950, the Baltimore & Ohio Railroad entered the diesel-electric locomotive era. The railroad began retiring their steam engines in favor of more efficient diesel-powered ones, which ultimately changed the landscape of transportation throughout the state and beyond.