How did joe biden use historic or current examples and statistics to make his points in his speech? please answer fast

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.

Why did the outbreak of world war 2 create a need for new military bases across the country?

In 1990s the us closed clark air force and subic bay naval station in