of Europe and became the societal pariahs of the age. Heidenjachten, translated as "heathen hunt" happened throughout Holland in an attempt to eradicate them. Although some Romani could be kept as slaves in Wallachia and Moldavia until abolition in 1856, the majority traveled as free nomads with their wagons, as alluded to in the spoked wheel symbol in the Romani flag. Elsewhere in Europe, they were subjected to ethnic cleansing, abduction of their children, and forced labour. In England, Romani were sometimes expelled from small communities or hanged; in France, they were branded, and their heads were shaved; in Moravia and Bohemia, the women were marked by their ears being severed. As a result, large groups of the Romani moved to the East, toward Poland, which was more tolerant, and Russia, where the Romani were treated more fairly as long as they paid the annual taxes. Modern history Romani began emigrating to North America in colonial times, with small groups recorded in Virginia and French Louisiana. Larger-scale Roma emigration to the United States began in the 1860s, with Romanichal groups from Great Britain. The most significant number immigrated in the early 20th century, mainly from the Vlax group of Kalderash. Many Romani also settled in South America. World War II During World War II and the Holocaust, the Nazis committed a systematic genocide against the Romani people. In the Romani language, this genocide is known as the Porajmos. Romanies were marked for extermination and sentenced to forced labor and imprisonment in concentration camps. They were often killed on sight, especially by the Einsatzgruppen (paramilitary death squads) on the Eastern Front. The total number of victims has been variously estimated at between 220,000 and 1,500,000. The Romani people were also persecuted in Nazi puppet states. In the Independent State of Croatia, the Ustaša killed almost the entire Roma population of 25,000. The concentration camp system of Jasenovac, run by the Ustaša militia and the Croat political police, were responsible for the deaths of between 15,000 and 20,000 Roma. Post-1945 In Czechoslovakia, they were labeled a "socially degraded stratum", and Romani women were sterilized as part of a state policy to reduce their population. This policy was implemented with large financial incentives, threats of denying future welfare payments, with misinformation, or after administering drugs. An official inquiry from the Czech Republic, resulting in a report (December 2005), concluded that the Communist authorities