Centralized governments in France and England were strengthened by… Religious Unification

Hundred years war

Crusades

Feudalism

Which of these best describes a civil liberty

How was the nation of islam different from other civil rights organizations

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.