An independent can vote in a closed primary election a. true or b. false

Which term do historians use to describe the personal preferences that people have that affect their interpretation of events

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.

How did the shift to farming affect native american cultures?