Terms such as half-caste, caste, quarter-caste and mix-breed were used by colonial officials in the British Empire during their classification of indigenous populations, and in Australia used during the Australian government's pursuit of a policy of assimilation.
In Australia, the term "half-caste", along with any other proportional representation of Aboriginality (such as "part-aborigine", "full-blood", "quarter-caste", "octoroon", "mulatto", or "hybrid"[4]) are defunct descriptors that are highly offensive.
This definition was carried forward into the first federal welfare legislation, such as the Deakin government's Invalid and Old-Age Pensions Act 1908 and the Fisher government's Maternity Allowance Act 1912, which made half-castes eligible to receive old-age pensions and maternity allowances but excluded individuals "who are Asiatic, or are aboriginal natives of Australia, Papua or the Pacific Islands".
[21] Prior to the explosion in censorship of half-castes in early-20th-century Burma, Thant claims inter-cultural couples such as Burmese-Indian marriages were encouraged by the local population.
In Burma, as in other colonies in Southeast Asia, intimate relations between native women and European men, and the half-caste progeny of such unions were considered harmful to the white minority rule founded upon carefully maintained racial hierarchies.
[25] Kailomas or vasus were children born to a Fijian native and European or indentured laborers brought in by the colonial government to work on sugarcane plantations over a century ago.
Brigitte Glaser notes that the half-caste characters in literary works of the 18th through 20th century were predominantly structured with prejudice, as degenerate, low, inferior, deviant or barbaric.
Ashcroft in his review considers the literary work structure as consistent with morals and values of colonial era where the European colonial powers considered people from different ethnic groups as unequal by birth in their abilities, character and potential, where laws were enacted that made sexual relations and marriage between ethnic groups as illegal.
[34] Sociological literature on South Africa, including the pre-colonial, colonial and apartheid eras, refers to half-caste as anyone born from admixing of White and people of color.
[36] People of mixed descent, the half-caste, were considered inferior and slaves by birth in the 19th-century hierarchically arranged, closed colonial social stratification system of South Africa.
[citation needed] In the United Kingdom, the term when used primarily applies to those of mixed Black and White parentage, although can extend to those of differing heritages as well.
[39] Sociologist Peter J. Aspinall argues that the term was coined by 19th-century British colonial administrations, and eventually started to be used as a descriptor of multiracial Britons in the 20th century who had partial white ancestry.
[43][44] Other terms in use in colonial era for half-castes included creole, casco, cafuso, caburet, cattalo, citrange, griffe, half blood, half-bred, half-breed, high yellow, hinny, hybrid, ladino, liger, mamaluco, mixblood, mixed-blood, mongrel, mule, mustee, octoroon, plumcot, quadroon, quintroon, sambo, tangelo, xibaro.
[45] Ann Laura Stoler has published a series of reviews of half-caste people and ethnic intermixing during the colonial era of human history.
Over time, differences were emphasised, and the colonial authorities proceeded to restrict, then disapprove and finally forbid sexual relationships between groups of people to maintain so-called purity of blood and limit inheritable rights.