What caused the Progressive movement to lose power?

The purpose of lycees was to a: prepare male candidates for government jobs b: prepare male candidates for the napoleonic wars c: prepare female candidates for government jobs

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.

What were some effects in world war 1 in europe ? ( and only in europe)