60s
70s
80s
90s
2000s
100

This countercultural movement, centered in San Francisco's Haight-Ashbury district, peaked during the "Summer of Love" in 1967.

What is the hippie movement?

100

This U.S. president resigned from office in 1974 following the Watergate scandal.

Who is Richard Nixon?

100

This disaster at a Ukrainian nuclear plant in 1986 resulted in massive radiation exposure.

What is the Chernobyl disaster?

100

The 1992 Los Angeles riots were sparked by the acquittal of police officers involved in the beating of this man.

Who is Rodney King?

100

This hurricane devastated New Orleans and the Gulf Coast in 2005, becoming one of the deadliest storms in U.S. history.

What is Hurricane Katrina?

200

This music festival, held in 1969, became a defining moment of the counterculture movement.

What is Woodstock?

200

This 1973 Supreme Court decision legalized abortion in the United States.

What is Roe v. Wade?

200

This Soviet leader introduced "Perestroika" and "Glasnost," leading to major reforms in the USSR.

Who is Mikhail Gorbachev?

200

This technology company released the first web browser, Mosaic, in 1993, helping to popularize the internet.

What is NCSA (National Center for Supercomputing Applications)?

200

The Large Hadron Collider, designed to study particle physics, was completed in 2008 in this European country.

What is Switzerland?

300

This landmark Supreme Court case established the principle that criminal suspects must be informed of their rights before being interrogated by the police.

What is Miranda v. Arizona?

300

This deadly cult, led by Jim Jones, was responsible for the mass suicide of over 900 people in 1978.

What is Jonestown (Peoples Temple)?

300

This arcade game, featuring a yellow character eating pellets, was released in 1980 and became a gaming icon.

What is Pac-Man?

300

 This international agreement, signed in 1994, created a trade bloc between the U.S., Canada, and Mexico.

What is NAFTA (North American Free Trade Agreement)?

300

This financial crisis, triggered by the collapse of the housing market, led to a global recession in 2008.

What is the subprime mortgage crisis?

400

The CIA's failed attempt to overthrow Fidel Castro in 1961 was known by this name.

What is the Bay of Pigs invasion?

400

The Iranian Revolution in 1979 led to the overthrow of this U.S.-backed leader.

Who is Shah Mohammad Reza Pahlavi?

400

This anti-apartheid leader was released from prison in 1990 after being incarcerated for 27 years.

Who is Nelson Mandela?

400

The 1995 Oklahoma City bombing was carried out by this domestic terrorist.

Who is Timothy McVeigh?

400

The 2003 Iraq War was initiated based on claims that this leader possessed weapons of mass destruction.

Who is Saddam Hussein?

500

This influential book by Rachel Carson, published in 1962, helped launch the modern environmental movement.

What is Silent Spring?

500

This 1972 event, in which Palestinian terrorists took Israeli athletes hostage, shocked the world during the Olympics.

What is the Munich Massacre?

500

The U.S. launched this military operation to remove General Manuel Noriega from power in Panama in 1989.

What is Operation Just Cause?

500

This country dissolved peacefully in 1993, splitting into the Czech Republic and Slovakia.

What is Czechoslovakia?

500

This social media platform, launched in 2006, introduced the concept of microblogging with 140-character messages.

What is Twitter?

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