What was the main attraction of the western territories of the united states in the early 1800s

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.

In the period from 1860 to 1890, which experience was shared by most native americans living in western states?

What does channing say that americans boast about