The Maryland School for the Deaf is a school that provides free public education to Deaf and hard-of-hearing Maryland

Maryland

Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

 residents, from birth to age 18.
The School was established at Frederick, Maryland

Frederick, Maryland

Frederick is a city in north-central Maryland. It is the county seat of Frederick County, the largest county by area in the state of Maryland. Frederick is an outlying community of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, which is part of a greater...

 in 1868 (Chapter 247, Acts of 1867; Chapter 409, Acts of 1868). The original buildings for the school were made of stone and were used during the Revolutionary War to detain Hessian mercenaries who were hired by the British.