Language took a huge step forward the first time a girl wanted to tell another girl about a boy she met, when the second girl had never met the boy. Many, many

Language took a huge step forward the first time a girl wanted to tell another girl about a boy she met, when the second girl had never met the boy. Many, many concepts had to come into play: a boy you've never met can exist other people can know a person that you don't know events happened at different times in the past other people you don't know can evoke strong emotions in people you do know all of this can be communicated using sounds