Describe six (6) events, acts by Congress, books, or Supreme Court decisions that occurred in the run-up to the Civil War. pls help this is due today

Reformers worked to change schools by making them more:

What battle in the civil war was known as the bloodiest war ?

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.