Journeys
Explorers
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Inventions & Gadgets
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100

In 1947, this U.S. Air Force pilot became the first person to break the sound barrier.

Who is Chuck Yeager?

100

He sailed the ocean blue in 1492.

Who is Christopher Columbus?

100

This European city is home to the Colosseum, once the heart of gladiator battles.

What is Rome?

100

This device, introduced in 1955, allowed people to cook food with invisible waves.

What is the microwave oven?

100

This game involves a red ball, pockets, and a green felt table.

What is billiards (or pool)?

200

This Norwegian adventurer sailed the Kon-Tiki raft across the Pacific in 1947.

Who is Thor Heyerdahl?

200

This American adventurer was the first person to walk on the moon in 1969.

Who is Neil Armstrong?

200

This Asian country is made up of more than 6,000 islands and has Tokyo as its capital.

What is Japan?

200

The first successful Polaroid instant camera was sold in this decade.

What are the 1940s?

200

In this card game, a pair of black eights is known as a “dead man’s hand.” 

What is poker?

300

In 1942, this technology, used to detect submarines, became crucial in the Battle of the Atlantic.

What is sonar?

300

The Lewis and Clark expedition began in this U.S. city before heading west.

What is St. Louis?

300

Machu Picchu, an Incan citadel, is found in this South American country.

What is Peru?

300

Percy Spencer accidentally invented this popular snack food while working with microwaves.

What is microwave popcorn?

300

The first commercial television broadcasts in the U.S. began in this decade.

What are the 1940s?

400

This general commanded Allied forces during the D-Day invasion of 1944.

Who is Dwight D. Eisenhower?

400

Known as the “Father of Modern Mountaineering,” this explorer was the first confirmed to summit Mount Everest in 1953.

Who is Sir Edmund Hillary?

400

This river, the longest in the world, flows northward through eleven countries.

What is the Nile?

400

In 1941, this product, made from nylon, quickly became a fashion sensation for women.

What are nylon stockings?

400

This puzzle toy, created in 1974, challenges players to align colors on a cube.

What is the Rubik’s Cube?

500

In 1949, this airline introduced the first regular transatlantic jet service.

What is BOAC (British Overseas Airways Corporation)?

500

This Norwegian explorer led the first expedition to reach the South Pole in 1911.

Who is Roald Amundsen?

500

The city of Timbuktu, once a great trading hub, is located in this African nation.

What is Mali?

500

This company introduced the first credit card in 1950.

What is Diners Club?

500

The first crossword puzzle appeared in this American newspaper in 1913.

What is the New York World?