About how many black soldiers joined the Union Army following the issuance of the Emancipation Proclamation? *

What was an immediate result for japan after world war i?       a.  a boosted economy      b.  a slower economy      c.  a weakened military      d.  less territory controlled by japan

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.

What explains the political difference among african americans politicians during reconstruction