Materials used to build the central pacific railroad were shipped

across north america.

from west to east.

around south america.

from north to south.

Describe some effects of the rise of communism in the soviet union?

Prior to which amendment were slaves counted as three-fifths of a personality

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.