Why were some europeans willing to explore and colonize distant lands?

Where did meiji reformers want to modernize japan? a) to colonize weaker nations in southeast asiab) to allow western nations to protect them in trade negotiationsc) to compete with the economies and military of western nations d) to replace traditional practices with western culture

What is zinn's approach to the study of history? what does he suggest occurs when history is told is the story of human progress?

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.