What does the monogenesis theory in language emergence state ?

Monogenesis theory believes in the single origin of language which means that there is only one origin pidgins and creoles from the Europe. It is more focused on the origin of European-based creoles and pidgins and not on the worldwide pidgins and creoles. More importantly, it believes that the reason for the similar structures of the pidgins and creoles all around the world is based on the fact that some grammatical structure of WAPP is retained while the lexicon was changed and Portuguese words were replaced by other words from other European countries languages.

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