1. In 1634, Maryland was founded on March 27. On this day, the first Maryland colonists arrived at St. Clement's Island in present-day St. Mary's County.

2. The Maryland State House in Annapolis, Maryland, was completed on March 27, 1779. It was the first peacetime capitol of the United States, and it still serves as the state's legislative branch today.

3. In 1827, the Chesapeake and Ohio Canal Company was chartered on March 27. The canal, which connected the Potomac River to the Ohio River, played a significant role in the industrialization of Maryland.

4. On March 27, 1861, Maryland voted against secession from the Union during the Civil War. This decision was significant because it allowed the Union to maintain control of Washington, D.C., and prevented the Confederacy from gaining a foothold in Maryland.

5. In 1912, the Baltimore News-American newspaper was first published on March 27. The newspaper, which had a daily circulation of over 200,000, was influential in shaping public opinion in Maryland for over 60 years.