Well, the Aztec culture let girls AND boys go to school, but girls went to school for only a few years, whereas boys went to school until they turned 17. But they didn't just get sent to school to ONLY learn how to become priests and warriors. They were also sent to school to learn how to be farmers and nobles.
<em>THE IMAGE IS A CHART OF THE AZTEC SOCIETY</em>
Two things that increased american interchanges in the late 1800s were "b. the telegraph and telephone," since both of these creations significantly accelerated correspondence and made it more productive.