How, according to Crawford and the map you are shown, did the geography, [climate, and history of Latin America shape how communities and networks formed around language?

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.

Who wrote the declaration of independence

The constitutional amendment that profited denying voting rights to people based on race or color is the?