Discuss two problem that led to romes decline

What event most likely had the biggest impact on german citizens on the home front?

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.

Which of these constitutional amendments made all people born or naturalized in the united states into citizens of the united states ?