1960s: Experimental theater is born in the United States, influencing the mass culture with its productions that shock middle-class Americans who are concerned about the war in Vietnam, civil rights, and the feminist movement.

Today: Experimental theater remains alive and thriving all over the United States and has broadened its scope to include international themes of multiculturalism and gay rights.

1960s: Large and loud demonstrations against the war in Vietnam gain the attention of the media and U.S. politicians as thousands of young men are drafted into the military services.

Today: Demonstrations and protests opposing the U.S. and British war in Iraq are held around the world.

1960s: A so-called second wave of feminism sweeps the country as women march in the streets. They have the right to vote, but now they are demanding the right to work outside the home and...