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What was the first state to join the union?
What is Delaware?
Eli Whitney invented this machine, which dramatically sped up the processing of cotton.
What is the cotton gin?
The first successful American motion picture system was developed by this famous inventor's company.
Who is Thomas Edison?
Willis Carrier invented the modern version of this appliance that keeps homes and buildings cool.
What is air conditioning?
This American was the first woman to serve as a justice on the U.S. Supreme Court.
Who is Sandra Day O'Connor?
The Wright brothers made the first successful powered airplane flight in this North Carolina location.
What is Kitty Hawk?
This was the first state west of the Mississippi River to join the Union.
What is Louisiana?
This invention made it possible to preserve food by sealing it in a metal container.
What is canning?
This was the first U.S. state to ratify the Constitution.
What is Delaware?
Percy Spencer's accidental discovery led to the invention of this popular kitchen appliance.
What is the microwave oven?
Alexander Graham Bell is credited with inventing this device.
What is the telephone?
The first successful American automobile was developed by this pair of brothers.
Who are Charles and Frank Duryea?
This was the first American to win the Nobel Peace Prize.
Who is Theodore Roosevelt?
The Wright brothers' first successful airplane was known by this number.
What is Flyer 1?
This was the first U.S. president to appear on television.
Who is Franklin D. Roosevelt?
This American inventor developed the practical incandescent light bulb.
Who is Thomas Edison?
This invention by Samuel Morse revolutionized long-distance communication.
What is the telegraph?
Garrett Morgan invented an early version of this device used to control traffic at intersections.
What is the traffic signal?
George Washington Carver became famous for developing many uses for this crop.
What are peanuts?
Robert Fulton is famous for making this type of transportation commercially successful.
What is the steamboat?
This was the first president of the United States.
Who is George Washington?
This American was the first person to walk on the Moon.
Who is Neil Armstrong?
This was the first American woman to fly solo across the Atlantic Ocean.
Who is Amelia Earhart?
This invention by Henry Ford helped make automobile travel affordable for ordinary Americans through mass production.
What is the assembly line?
In 1876, this famous inventor demonstrated an invention that allowed people to communicate by voice over a wire.
Who is Alexander Graham Bell?