Maryland is a state in the Mid-Atlantic region of the eastern United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to its east. The state's largest city is Baltimore, and its capital is Annapolis. Among its occasional nicknames are Old Line State, the Free State, and the Chesapeake Bay State. It is named after the English queen Henrietta Maria, known in England as Queen Mary, who was the wife of King Charles I.

As one of the original Thirteen Colonies of Great Britain, Maryland was founded by George Calvert, a Catholic convert who sought to provide a religious haven for Catholics persecuted in England. In 1632, Charles I of England granted Calvert a colonial charter, naming the colony after his wife, Queen Mary (Henrietta Maria of France). Unlike the Pilgrims and Puritans, who rejected Catholicism in their settlements, Calvert envisioned a colony where people of different religious sects would coexist under the principle of toleration. Accordingly, in 1649 the Maryland General Assembly passed an Act Concerning Religion, which enshrined this principle by penalizing anyone who "reproached" a fellow Marylander based on religious affiliation.

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