A I had the same question
How it affected the 20th century :
It influenced the way that people think about such important social issues as race, gender, and class. It played an important role in the political process, particularly in shaping national election campaigns. TV programs and commercials have also been mentioned as major factors contributing to increased American materialism (a view that places more value on acquiring material possessions than on developing in other ways). Finally, television helped to spread American culture around the world.
Answer:
Leadership
Explanation:
Kennedy's slogan was "A time for greatness", which is meant to say, it is time for America to move into the world. This was the age civil rights was hitting all sorts of different peaks. Promises were being made and everything. Though the election was a close one, at the time, many would agree that leadership was what was needed.
