It is thought that language developed in

Lev Vygotsky believed that before two years of age, both speech and thought develop in differing ways along with differing functions. The idea that relationship between thought and speech is ever-changing, supports Vygotsky's claims. Vygotsky's theory claims that thought and speech have different genetic roots.

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albany plan of union, 1754. the albany plan of union was a plan to place the british north american colonies under a more centralized government