What were the first two battles of the american revolution and in what colony did they occur?

Describe the causes and effects of the war powers act.

Why did einstein write a letter to president roosevelt

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.