1. Maryland became a state on March 2, 1781, making it the seventh state to join the union. It was also the first state to have a constitution based on the Declaration of Independence.

2. On March 2, 1853, the Washington National Monument Society announced a design competition to create a monument honoring George Washington. The winner, Robert Mills, designed an obelisk that still stands today.

3. The Chesapeake Bay Bridge, connecting Maryland's Eastern and Western shores, opened on March 2, 1952. At the time of its construction, it was the world's longest continuous over-water structure.

4. The Maryland House of Delegates approved a bill legalizing same-sex marriage on March 2, 2012. This made Maryland the eighth state to legalize same-sex marriage.

5. On March 2, 2020, Maryland Governor Larry Hogan declared a state of emergency in response to the COVID-19 pandemic. The declaration gave the governor more power to allocate resources and coordinate response efforts with local jurisdictions.