Princess Anne, listed on the National Register of Historic Places, was created by an act of Maryland's General Assembly in 1733, named for King George II's daughter Anne, and located at what was generally called the "wading Place" of the Manokin River; it is distinguished by many Federal and Victorian style houses, lovingly tended dooryards, and the Historic Boxwood Garden. Crisfield, originally Somer's Cove, began as a small fishing village on Tangier Sound and became a major seafood exporting center after construction of the Eastern Shore Railroad in 1867; one of the railroad's chief promoters was U.S. Congressman John Woodland Crisfield, for whom the town was renamed, and part of the town was literally built atop discarded oyster shells from Tangier Sound's rich oyster harvests. Snow Hill, named for a suburb in London, was settled in the 1670s as a port for ocean-going vessels, developed farming alongside its seaport, became the county seat when Worcester County was formed in 1742, and evolved from schooners to steamboats to the railroad; more than 100 homes there predate 1875 and show Victorian and colonial architecture along tree-shaded and brick-lined walks. Assateague Island National Seashore is a windswept thirty-seven-mile barrier island where wild horses roam, alongside Sika deer and nearly 300 species of birds, with undeveloped white sand beaches, dunes, back bays, and opportunities for camping, swimming, surf fishing, clamming, crabbing, canoeing, and summer nature programs.