Attack from outside forces
George Gershwin helped spread jazz and ragtime music to white people. Before that, jazz was a predominantly black music and was considered too raucous to white people. Gershwin made it popular because he too was white.
Mr. John Lewis was one of the pioneering leaders of Civil Rights Movement in the 1960, and he kept on battling for individuals' rights since joining Congress in 1987. Lewis was a Freedom Rider, talked at 1963's March on Washington and governs the exhibition that became up popular. He was chosen to Congress in 1986 and got the Presidential Medal of Freedom in 2011.