Ineed my history teacher has us doing a project and i need to answer this questions portugal was able to claim these various locations and how they took control?

Wich part of the declaration of independence acts as an implied plan of action in that it lists laws and practices to be changed

N1947, the united nations create a country

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.