The media has been eager to paint the upcoming political conventions in Cleveland and Philadelphia as repeats of the DNC convention of 1968, but is this a valid analogy? The 60's were some of the most turbulent years in the history of the United States. The Civil Rights Movement, the sexual revolution, and the anti-war movement divided America like nothing since the Civil War, and it all came to a violent head in Chicago during the summer of 1968.

Here are the building blocks of that chaos:

National Guard trucks rolling down Michigan Avenue, 1968 (photo by Bea Carson)

4. Nixon wins

The police brutally beat and gassed protesters, reporters, and doctors who came to help. The incident became known as "The Battle of Michigan Avenue." It split the Democrats in 1968 and allowed Nixon, who ran a campaign on restoring law and order and pulling out of Vietnam, to ascend to the Presidency.

This most unsteady course of events in American history altered the way the Cold War was fought, created distrust in the office of the President, and didn't stop until after Nixon's resignation in 1974, which ended over a decade of social unrest, upheaval, and uncertainty in the United States.