What were two results of the Kansas-Nebraska Act?

a. the banning of slavery in the Nebraska Territory
b. the uniting of Democrats and Republicans
c. the division of Democrats into two factions
d. a small war in Kansas over the issue of slavery
e. the end of popular sovereignty

What role and side did italy fight on during world war 1? why did they change sides? write this in your own words.

The public space for government speech in ancient athens was called

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.