What was the main reason for building the suez canal?

- increasing russian naval ports in the middle east

- allowing indian merchants to reach the eastern coast of africa

- increasing europeans trade with the middle east and asia

- allowing the french military to bring weapons to asia

What is guaranteed by the 5th amendment

Which two important economic activities in the west are possible because of the united states natural resources

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.