Ellis Island, off the southern tip of Manhattan, was the major portal for European immigrants to the United States and looms large in 19th century and early 20th century history. After extensive restoration, today it is an international symbol and important museum. Edited by a noted historian and librarian at the Ellis Island Immigration Museum, this is the first encyclopedia devoted to the island, documenting its various incarnations. It contains more than 430 essay entries on the crucial people, operations, rooms and buildings, events, immigration laws and acts, organizations, and other terms associated with the island's history. This ready reference work is perfect for synthesizing information for student reports on immigration and heritage. Genealogists and browsers will find this captivating reading as well. A chronology, primary document appendices, and plentiful photos give added value. The only reference work of its kind on the most important entry portal for most immigrants to the US The author is the official librarian and historian of the Ellis Island museum.