Agroups of people from which english-speaking country were not among the early american settlers?

Describe germany’s successes at the beginning of world war 2?

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.

Which region of the country had more representatives in congress as of 1860