
opportunist
some critics believe it started by males in the hunter and gatherer societies due to communication with hunting big game. While some scientists believe it originated from females in the sense that they had to nurture there young. I believe it originated from females as it is proven that we have 11% more working neurons in the language and hearing part of the brain. While men only use one side of there brain while they use language females use both sides.

SonderMinds
It was slowly developed so that people in those times could communicate more efficiently.

TheCroissant
Google search ancient languages
