This explosive substance has been used to fire bullets from guns since the earliest firearms.
What is gunpowder?
This Soviet satellite, launched in 1957, triggered panic in the United States and began the Space Race.
What is Sputnik I?
This type of animal was commonly used in World War I to carry messages across the battlefield.
What are pigeons?
This civil rights organization, founded in 1909, played a key role in legal challenges against segregation.
This fastening material was inspired by burrs sticking to a dog’s fur during a hike.
What is Velcro?
Weapons like the fire lance first appeared around the 10th century in this country during the Song dynasty.
What is China?
This American satellite discovered the Van Allen Radiation Belts while collecting scientific data.
What is Explorer I?
This decorated war dog could detect mustard gas attacks before soldiers, saving lives in World War I.
Who is Sergeant Stubby?
This 1954 Supreme Court case declared that “separate but equal” schools were unconstitutional.
What is Brown v. Board of Ed?
Before becoming a popular children’s toy, Play-Doh was originally this type of product.
What is wallpaper cleaner?
This smokeless propellant, used in British firearms and artillery, replaced traditional black powder in the late 1800s.
What is cordite?
This Apollo 11 astronaut said, “That’s one small step for man, one giant leap for mankind” as he became the first person to walk on the Moon.
Who is Neil Armstrong?
Despite being shot and badly wounded, this pigeon delivered a message that saved nearly 200 trapped American soldiers.
Who is Cher Ami?
This group of students integrated Central High School in Arkansas under federal protection in 1957.
What is the Little Rock 9?
This breakfast cereal was accidentally created when the Kellogg brothers left a batch of dough out too long and it became stale.
What are cornflakes?
Used by British Redcoats during the American Revolution, this musket became one of the most widely issued firearms of the 18th century.
What is the Brown Bess?
Taken during Apollo 8, this famous photograph showed Earth rising above the Moon’s horizon and helped inspire the environmental movement.
What is "Earthrise"?
To keep him with their unit, soldiers officially enlisted this animal as a private in the Polish army during World War II.
Who is Wojtek?
This 1960 protest began when four students refused to leave a segregated lunch counter in North Carolina.
What is the Greensboro Sit-in?
This antibiotic was discovered when mold accidentally killed bacteria in a scientist’s petri dish.
What is penicillin?
This Soviet engineer designed the AK-47, one of the most widely used rifles in the world.
Who is Mikhail Kalashnikov?
This Apollo 8 astronaut, later commander of Apollo 13, helped lead the first crewed mission to orbit the moon.
Who is Jim Lovell?
At the Battle of Monte Cassino, a literal bear serving with Allied forces carried these to soldiers.
What are artillery shells?
Martin Luther King Jr. was assassinated in 1968 while supporting striking sanitation workers in this city.
What is Memphis, Tennessee?
Before being rebranded as a children’s toy, Play-Doh was originally sold under this name.
What is Kutol?