The maps below show the historical migration of Roma throughout Asia and Europe

Gypsy migration, 12th to 16th centuries (Internet Archive, Wayback Machine) [link]

Interactive Map: Roma Populations in Roma Decade Countries [link]

Jewish Virtual Library: Germany & The Nazis Maps: The Persecution of Roma (Gypsies) [link]

Maps of Indo-European Languages: Romany [link]

Myths, Hypotheses and Facts Concerning the Origin of Peoples: The True Origin of Roma and Sinti [link]

A National Geographic Society map showing Roma migration from India to Europe and to the Americas (Internet Archive, Wayback Machine) [link, PDF document]

Roma Diaspora: Wikipedia [link]

United States Holocaust Memorial Museum: Genocide of European Roma (Gypsies), 1939-45 Map [link]