Go check out the views known as monogenesis and polygenesis that appear as scientific cover for a growing view of white supremacy that did not exist prior to the 1800's.    From Wordnik.com.  [Memphis Commercial Appeal Stories] Reference

David Hume's position on the conflict between polygenesis versus monogenesis is the subject of some scholarly debate.    From Wordnik.com.  [Race] Reference

Although the Catholic Gobineau initially espoused monogenesis, he later leaned towards polygenesis and ended up ambivalent on this issue.    From Wordnik.com.  [Race] Reference

The denial of an innate and privileged character of the Adamic language does not, however, mean denial of the doctrine of the monogenesis of languages.    From Wordnik.com.  [Dictionary of the History of Ideas] Reference

This may or may not be tied into debate about the genesis of pidgins, with one school of thought claiming there was a single source (monogenesis) and one arguing that pidgins arose separately (polygenesis) (a second battle is over substrate, superstrate, or bio-program, a glossary to figure out the terminology is here).    From Wordnik.com.  [languagehat.com: ANYONE FOR SALISHAN?] Reference

Drawing inspiration from British anthropologists, Darwin made the early development of language, hence mental monogenesis, central to his account of human evolution.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

(One of the mysterious monosyllables, explained by regular phonetic change and not a justification for the monogenesis of language as hypothesized by Chloe Grant in her more speculative moods.).    From Wordnik.com.  [VERBATIM: The Language Quarterly Vol XI No 1] Reference

The late discovery of the monogenesis, reciprocal convertibility, and indestructibility of all Forces in nature, leads us upward towards the recognition of one Omnipresent and Omnipotent Will, which, like a mighty tide, sweeps through the universe and effects all its changes.    From Wordnik.com.  [Christianity and Greek Philosophy or, the relation between spontaneous and reflective thought in Greece and the positive teaching of Christ and His Apostles] Reference

“accident” (when a more obvious source would have been monogenesis!).    From Wordnik.com.  [LINGUISTICS] Reference