What was the original conception of "administration" at the time of the framing of the constitution?

How did different groups of people in france understand the enlightment ideas

Why might congress have had difficulty paying the war debt after the american revolution

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.