It showed a shift to a more aggressive stance in the fight
for civil rights. Previous civil rights
advocates like Martin Luther King advocated reconciliation and
non-violence. Malcolm X called for a war
against their oppressors as well as a separate Black nation. The Black Panthers also had a similar belief
which led them to come in conflict with law enforcement.
The labor movement in the United States<span> grew out of the need to protect the common interest of workers. For those in the industrial sector, organized </span>labor unions<span> fought for better wages, reasonable hours and safer working conditions.</span>
The problem of the holocaust caused this.
Check out the Human Evolution Blog and search you question there. There is probably more there than I could explain to you :)<span />