What were the core principles of the first Protestant denominations that led to the period known as the Reformation? How did further Protestant denominations differ from the original ideas of Martin Luther? Please be quick. I am on a timed exam.

Explain how social darwinism impact imperialism.

What did the incas accomplish? a. written language b. formalized religion c. conquest of the western south america d. formalized government

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.