Transportation
Agriculture
Communications
Construction
War
100

Vanderbilt and Morgan built these

What are railroads?

100

Cyrus McCormick was an American inventor who founded the McCormick Company that produced these machines necessary for commercial farming.

What are reapers or harvesters?

100

Samuel Morse invented this early long distance communication devise

What is the telegraph?

100

This was constructed in the 1860's and linked California to the rest of the country

What is the Transcontinental railroad?

100

The Germans used these against American shipping in both World Wars

What are submarines?

200

Ford used these to make his cars quickly and cheaply

What are assembly lines and interchangeable parts?

200

Joseph Glidden closed the the open range with this invention

What is barbed wire?

200

Alexander Graham Bell invented this improved long distance communication devise

What is the telephone?

200

This linked the Atlantic and Pacific Oceans and gave the USA a global trade advantage

What is the Panama Canal?

200

This man pioneered interchangeable parts in his production of revolvers

Who is Samuel Colt

300

These guys successfully flew the first manned airplane at Kittyhawk NC

Who are the Wright brothers?

300

Contour plowing, crop rotation, reducing the destruction of native grasses and other land-friendly technique are used to prevent a second one of these 

What is a "dust bowl?"

300

Guglielmo Marconi invented this mass communication device

What is the radio?

300

These Hoover and Roosevelt's New Deal projects put Americans back to work and supplied water and electricity

What are dams?

300

Robert Oppenheimer oversaw the construction of the first of these weapons during the Manhattan Project at Los Alamos New Mexico in the 1940's.

What are atomic or nuclear bombs?

400

President Eisenhower pushed this nationwide transportation project.

What is the interstate highway system?

400

This man found many uses for peanuts

Who is GW Carver?

400

Good looks combined with this communication device helped JF Kennedy get elected

What is television?

400

Without Carnegie's mass production of steel and Otis' elevator, these would not have been possible

What are skyscrapers?

400

Napalm and agent orange were defoliants used extensively in this controversial jungle war

What is Vietnam?

500

The Hindenburg disaster occurred on May 6, 1937, in New Jersey.  There were 36 fatalities in the crash of this type of early airship.

What is a zeppelin(or blimp, dirigible)?  

500

The production of these controversial modified foods began in 1994 

What are GMOs(genetically modified foods)

500

In 1991 this new communication network went worldwide.

What is the internet or world wide web?

500

Levitt Town was one of the most well know housing developments in this area

What are the suburbs?

500

This space age defense system was Reagan's effort to protect the USA against nuclear missiles

What is the "Star Wars Defense System?"