It was the "oil crisis" that was one major cause of the recession in the United States in the 1970s, since many countries in the Middle East cut prices to manipulate prices. This put a focus on alternative energy sources that continues today.
The colonist believed they would be wealthy by the amount of land they owned
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Rock n' Roll and Elvis Presley became popular in the 1950s through the rise of counterculture and young peoples desire for something new and rebellious. Elvis' music and rock'n roll more generally signified a shifting tide in American society amongst youth. Youth became interested in upsetting the status quo and listening and being involved in things that were once considered taboo like rock'n roll. Radio and TV helped to spread this music because it provided a medium for people to hear and learn of new artists and music styles quickly.