Ancient Empires
This empire, centered in modern-day Iraq, is known for the Hanging Gardens, one of the Seven Wonders of the Ancient World.
Babylonian Empire
Alexander Graham Bell is most associated with inventing this communication device in 1876.
The telephone.
This religion founded by Siddhartha Gautama teaches the Four Noble Truths.
Buddhism
In 1912, this famous “unsinkable” ship struck an iceberg and sank in the Atlantic Ocean.
The Titanic
The assassination of Archduke Franz Ferdinand helped spark this war in 1914.
World War I
Julius Caesar helped transform this republic into an empire ruled by emperors.
The Roman Republic
Johannes Gutenberg revolutionized Europe by improving this machine in the 1400s.
The printing press.
Followers of this religion worship in mosques and consider Muhammad the final prophet.
Islam
Christopher Columbus crossed this ocean on his 1492 voyage to the Americas.
Atlantic Ocean
The United States fought this Cold War conflict in Southeast Asia during the 1960s and early 1970s.
Vietnam War
This South American empire built Machu Picchu high in the Andes Mountains.
Inca Empire
The Wright brothers are credited with inventing and flying the first successful powered version of this.
The airplane.
The sacred text of Judaism is known by this name.
Torah
This 1941 attack on a U.S. naval base brought the United States into World War II.
Pearl Harbor
This wall fell in 1989, symbolizing the end of the Cold War in Europe.
Berlin Wall
The Great Wall was expanded under the rule of this Chinese dynasty’s first emperor.
Qin Dynasty
This inventor developed a practical incandescent light bulb and founded General Electric.
Thomas Edison
Hinduism originated in this modern-day country.
India
Ferdinand Magellan’s expedition became the first to accomplish this feat by sea.
Circumnavigation
Operation Desert Storm was part of this 1991 conflict following Iraq’s invasion of Kuwait.
Gulf War
At its height in the 1200s, this empire ruled by Genghis Khan became the largest contiguous land empire in history.
Mongol Empire
This invention by James Watt greatly improved industrial production and helped power the Industrial Revolution.
Stream engine
This city in Saudi Arabia is the holiest site in Islam and the destination of the Hajj pilgrimage.
Mecca
In 1956, control of this vital canal sparked an international crisis involving Egypt, Britain, France, and Israel.
Suez Canal
This 1962 Cold War confrontation brought the United States and Soviet Union close to nuclear war.
Cuban Missile Crisis