It's still popular today because people general enjoy his music & maybe the genre of music. his lyrics or the story behind the song can having a deep meaning to people.
Andrew Jackson created the Democratic party and stood for the people who had not really had a voice, unlike past presidents who stood more for the elites and upper classes. Born into poverty, he was able to come out of it and become a successful war hero which helped him become president.
Imperialism can be characterized mainly by a country's acquisition and colonization of land. an imperialist country will often take new land by force, and imperialist countries often promote nationalist views.
Its kinda confusing maybe try putting a pic to understand better
