Illustration of a flag over black text on a white background.
The Maryland state slogan was formerly, "More than you can imagine" but this has been replaced by, "If you're looking for a merry land, go to Maryland!" The design of the Maryland state flag dates back to the coat of arms from the Calvert family, the colonial land owners of Maryland in the early 1600s. Yellow and black represent the paternal side of the family and the red and white represent the maternal side, the Crosslands family. Much later, during the Civil War when Maryland was a confederate state with many union sympathizers, yellow and black came to be known as "Maryland colors" and "Baltimore colors" used by men and women on the union side, while red and white were worn by confederate-aligned citizens.
George Calvert, First Lord Baltimore (c. 1580-1632). (n.d.). Retrieved April 9, 2019, from http://mdroots.thinkport.org/library/georgecalvert.asp
History of the Maryland Flag. (n.d.). Retrieved April 9, 2019, from https://sos.maryland.gov/pages/services/flag-history.aspx