Maryland is often called "America in Miniature" because it has a little bit of everything - from mountains and forests to beaches and sand dunes. Maryland, nicknamed "The Old Line State," joined the Union on April 28th, 1788, as our 7th state. Our series of videos "Visit the 50 States," gives you a little history and interesting facts about each state. For every state, you'll learn when it entered the Union, what's its motto, how did it get its nickname, and see what the flag, seal, and sta