quality:corruption, structural:summarization, information:classification
Race

Laws banning "race-mixing" were enforced in certain North American jurisdictions from 1691 until 1967, in Nazi Germany (the Nuremberg Laws) from 1935 until 1945, and in South Africa during most part of the apartheid era (1949–1985). All these laws primarily banned marriage between persons of different racially or ethnically defined groups, which was termed "amalgamation" or "miscegenation" in the U.S. The laws in Nazi Germany and many of the U.S. states, as well as South Africa, also banned sexual relations between such individuals.

In the United States, laws in some but not all of the states prohibited the marriage of whites and blacks, and in many states also the intermarriage of whites with Native Americans or Asians. In the U.S., such laws were known as anti-miscegenation laws. From 1913 until 1948, 30 out of the then 48 states enforced such laws. Although an "Anti-Miscegenation Amendment" to the United States Constitution was proposed in 1871, in 1912–1913, and in 1928, no nationwide law against racially mixed marriages was ever enacted. In 1967, the Supreme Court of the United States unanimously ruled in Loving v. Virginia that anti-miscegenation laws are unconstitutional. With this ruling, these laws were no longer in effect in the remaining 16 states that still had them.

The Nazi ban on interracial marriage and interracial sex was enacted in September 1935 as part of the Nuremberg Laws, the Gesetz zum Schutze des deutschen Blutes und der deutschen Ehre (The Law for the Protection of German Blood and German Honour). The Nuremberg Laws classified Jews as a race and forbade marriage and extramarital sexual relations at first with people of Jewish descent, but was later ended to the "Gypsies, Negroes or their bastard offspring" and people of "German or related blood". Such relations were marked as Rassenschande (lit. "race-disgrace") and could be punished by imprisonment (usually followed by deportation to a concentration camp) and even by death.

South Africa under apartheid also banned interracial marriage. The Prohibition of Mixed Marriages Act, 1949 prohibited marriage between persons of different races, and the Immorality Act of 1950 made sexual relations with a person of a different race a crime.