What is archaeological ???

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.

The french and the dutch establish colonies in north america to, a. establish sugar plantations. b. spread catholicism to the native americans. c. extract gold and silver from the aztec empire. d. trade with native americans for furs.

What was a immediate cause of the panic of 1837