Cumbia is a folkloric rhythm and dance from Colombia.
 It has components from three cultures, principally indigeous and Black African and, in lesser extent, white (Spanish), fruit of a long and intense interbreeding between these cultures during the Conquest and the Colony.
 The researcher Guillermo Abadía Morales in his "Compendium of Colombian folklore", Volume 3, # 7, published in 1962, states that "this explains the origin in the zambo conjugation of musical air by the fusion of the melancholy indigenous gaita flute or caña de millo, i.e., Tolo or Kuisí, of Kuna or Kogi ethnic groups, respectively, and the cheerful and impetuous resonance from African drums.
 The ethnographic council has been symbolized in the different dancing roles that correspond to each sex."
 The presence of these cultural elements can be appreciated thus:
A homeland ( "country of origin" and native land) is the concept of the place (cultural geography) with which an ethnic group holds a long history and a deep cultural association – the country in which a particular national identity began.
 As a common noun, homeland, it simply connotes the country of one's origin.
 When used as a proper noun, the Homeland, as well as its equivalents in other languages, often have ethnic nationalist connotations.
 A homeland may also be referred to as a "fatherland", a "motherland", or a "mother country", depending on the culture and language of the nationality in question.
A wristlock is a joint lock primarily affecting the wrist-joint and possibly the radioulnar joints through rotation of the hand.
 A wristlock is typically applied by grabbing the opponent's hand, and bending and/or twisting it.
 Wristlocks are very common in martial arts such as aikido, hapkido and jujutsu where they are featured as self-defense techniques.
 They are also used as submission holds in combat sports such as Brazilian jiu-jitsu (where the most common name is "mão de vaca", "the cow's hand") and catch wrestling.
 While being an illegal technique in modern sambo and judo competitions, it is still practiced in judo forms of self-defense kata kōdōkan goshinjutsu.
 Wristlocks are also widely used as pain compliance holds, often in police and military.
Sambo is a term for a person with African heritage and, in some countries, also mixed with Native American heritage (see "zambo").
Islam Ramazanovich Makhachev (Russian: Ислам Рамазанович Махачев ; born October 27, 1991 in Dagestan) is a Russian mixed martial artist, judoka and sambist of Lak origin.
 He is a Combat Sambo World Champion, and currently fights in the lightweight division of the Ultimate Fighting Championship.
Rules of origin are used to determine the country of origin of a product for purposes of international trade.
 There are two common types of rules of origin depending upon application, the preferential and non-preferential rules of origin (19 CFR 102).
 The exact rules vary from country to country, from agreement to agreement.
Zambo (] ] ) and cafuzo (] ) are racial terms used in the Spanish and Portuguese Empires and occasionally today to identify individuals in the Americas who are of mixed African and Amerindian ancestry (the analogous English term, "sambo", is considered a slur).
 Historically, the racial cross between African slaves and Amerindians was referred to as a "zambaggoa", then "zambo", then "sambo".
 In the United States, the word "sambo" is thought to refer to the racial cross between a black slave and a white person.
José Antonio Cecchini (born October 8, 1955) is a retired Spanish wrestler who represented his country in sambo, judo and Greco-Roman wrestling.
 In 1979 and 1981 he won gold medal at World Sambo Championships.
 He participated at the 1980 Summer Olympics in judo and was eliminated in second round by Slavko Obadov from Yugoslavia.
Tsendiin Damdin (Mongolian: Цэндийн Дамдин ; born March 31, 1957) is a retired Mongolian wrestler who represented his country in sambo and judo.
 At the 1980 Summer Olympics he won the silver medal in the men's Half Lightweight (65 kg) category.
 In 1979 he won gold medal at World Sambo Championships in lighweight category.
Country of origin (COO), is the country of manufacture, production, or growth where an article or product comes from.
 There are differing rules of origin under various national laws and international treaties.
 Country of origin labelling is also known as "place-based branding", the "made-in image" or the "nationality bias."
 In some regions or industries, country of origin labelling may adopt unique local terms such as terroir used to describe wine appellations based on the specific region where grapes are grown and wine manufactured.

Question: What country of origin does Zambo and Sambo have in common?
Answer: African