Anne Arundel County was originally part of St. Mary's County in the Province of Maryland. In 1650, the year after Anne Arundell's death, the county separated and became the 3rd of 23 Maryland counties. Between 1654 and 1658, the county was known as "Providence County" by many of its early Puritan settlers.
On March 25, 1655, during the English Civil War, the Battle of the Severn was fought in Anne Arundel County between Puritan forces supporting the Commonwealth of England and forces loyal to Cæcilius Calvert. The Commonwealth forces under William Fuller were victorious.
Between 1694 and 1695, the capital of Maryland was moved from St. Mary's City in St. Mary's County to Annapolis in Anne Arundel County. Prior to the move, Annapolis was known as "Providence".
During the American Revolutionary War, citizens of Anne Arundel County supported the Continental Army by providing troops for three regiments. The 3rd Maryland Regiment, the 4th Maryland Regiment, and the 6th Maryland Regiment recruited in the county.
During the War of 1812, the USS Constitution sailed from Annapolis prior to its victorious engagement with the HMS Guerriere.
On May 22, 1830, the inaugural horse-drawn train of the B & O Railroad travelled the 13 miles (21 km) of the newly-completed track from Mount Clare Station in Baltimore City to Ellicott Mills in Anne Arundel County. This was the first regular railroad passenger service in the United States. Ellicott Mills is now known as Ellicott City and is located in what is now Howard County.
Anne Arundel County originally included most of what was to become Howard County. In 1851, Howard County was broken off and made into the 21st county in Maryland.
Anne Arundel County is located to the south of the city of Baltimore. According to the 2000 census, the county has a total area of 587.90 square miles (1,522.7 km2), of which 415.94 square miles (1,077.3 km2) (or 70.75%) is land and 171.96 square miles (445.4 km2) (or 29.25%) is water. It is located on the western side of Chesapeake Bay, with numerous rivers and tidal creeks indenting the shoreline.
Annapolis Real Estate and Relocation - Anne Arundel County, the Eastern Shore, and Surrounding Counties in Maryland