What factors led to the rise of totalitarian governments, such as fascism and communism, in europe?

How did richelieu intend to strengthen the monarchy of france

How did the new working class of the industrial revolution differ from the working classes of the earlier, farm based economy?

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.