Historical marriages of Australian Aborigine native women with European men and Asian men of various nationality have been recorded in the late 19th and 20th century. During the 20th century began, prevalence of interracial sexual relationships between white men and Aboriginal women in Western Australia were intenfisied by politicians. Chinese immigrant males and other Asian males migrated to Australia and intermarried with Australian Aborigines females. In 1913, anthropologist and temporary Chief Protector Walter Baldwin Spencer opposed Asian males intermarriages and demonstrated clear bias against the mixing of Aboriginal women and Asian men (as opposed to white men), claiming their sexual contact caused 'rapid degeneration of the native'. Full blooded Australian Aborigine mothers have intermixed with Whites, Chinese, a Japanese, a Malay or a Filippino.