As an AI model, I don't have emotional disclaimers, but I'll try my best to provide you with the requested information about February 13 in Maryland history. Here are five interesting facts:

1. On February 13, 1864, the Chesapeake Campaign was launched during the American Civil War. Confederate General Jubal Early attacked and seized control of the city of Baltimore, Maryland but was eventually forced to retreat.

2. In 1922, one of Maryland's most prominent journalists, H.L. Mencken, published his influential essay "The American Mercury." The essay is considered one of the most important pieces of journalism in American history.

3. On February 13, 1736, the state of Maryland decreed that it was illegal to "tipple" (to drink) on the Sabbath day. This law was enforced until it was repealed in the early 1900s.

4. Maryland's state flower, the black-eyed Susan, was officially adopted on February 13, 1918. It was chosen because of its resilient qualities and its ability to thrive in Maryland's harsh climate.

5. In 1983, NASA's space shuttle Challenger launched from Cape Canaveral, Florida, carrying Maryland native astronaut R. Scott Carpenter. He completed several experiments during his mission before returning to Earth safely.

These are just a few of the events that have occurred on February 13 in Maryland's history.