in the Equality Act 2010 to protect British citizens against caste discrimination. In 2018 the UK government decided not to include caste as a "protected characteristic" within the terms of the Act, and to rely instead on case law to identify tests for caste-based discrimination. Supporters of anti-caste legislation include Lord Avebury and Lady Thornton. Sikh diaspora in Britain Sikhs in the United Kingdom are affected by caste. Gurdwaras such as those of the Ramgarhia Sikhs are organised along caste lines and most are controlled by a single caste. In most British towns and cities with a significant Sikh population, rival gurdwaras can be found with caste-specific management committees. The caste system and caste identity is entrenched and reinforced. Caste-based discrimination has occurred amongst Sikhs in the UK. At a sports competition in Birmingham in 1999, Jat Sikhs refused to eat food that had been cooked and prepared by the Chamar community. The few gurdwaras that accept inter-caste marriages do so reluctantly. Gurdwaras may insist on the presence of Singh and Kaur in the names of the bridegroom and bride, or deny them access to gurdwara-based religious services and community centres. In the Caribbean It is estimated that in 1883, about one-third of the immigrants who arrived in the Caribbean were Dalits. The shared experience of being exploited in a foreign land gradually broke down caste barriers in the Caribbean Hindu communities. In Continental Europe The Romani people, originating in northern India, are said to be of Dalit ancestry. Between 1001 and 1026, the Romani fought under their Hindu rulers to fight the Ghaznavids. In the United States Many Dalits first came to the United States to flee caste-based oppression in South Asia. After the Chinese Exclusion Act of 1882, the demand for labourers brought in many caste-diverse South Asian immigrants, many of whom were Dalit. After the 1965 Immigration and Naturalization Act, immigrants from India were primarily professionals and students, largely from upper caste or dominant caste families. However, from the 1990s onwards, many more of the skilled labourers arriving from India have been Dalit, due to multiple generations of affirmative action policies in India, as well as ongoing efforts of organised resistance against caste discrimination. Dalits have faced discrimination and mistreatment throughout their existence in the United States. In the landmark Supreme Court Case United States v. Bhagat Singh Thind, Thind unsuccessfully argued for his right to citizenship