How did africam americans react to federal recognition of "jim crow" laws

True or false colonies were first established by greece around 700 bc to supply food

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.

Who were the only people that were not allowed to be a citizen in the roman empire