War...What is it good for
Go to (social) class
Religion
Famous People
Inca, Aztec or Maya
100
The war(s) that helped Rome expand its trade and wealth. Also led to the destruction of Carthage
Punic Wars
100
The rigid social class system of India beginning around the Aryan period
Caste System
100
A term in Hinduism (and Buddhism) that means 'all actions have future consequences'. This matters when considering the importance of reincarnation
Karma
100
'Author' of the Iliad and Odyssey
Homer
100

The civilization located in the rain forests of Mexico on the Yucatan Peninsula

Maya

200
The war that united Athens and Sparta against a common enemy. Victories at Marathon and Salamis left the Greeks in control of the Aegean Sea
Persian War(s)
200
Peasants in the feudal system. They were tied to the land
Serfs
200
The more common name for Siddhartha Gautama
The Buddha
200
This Greek philosopher who wrote 'The Republic'. He was the one in the middle
Plato
200

The civilization located in the Andes mountains of South America

Inca

300
The war between Athens and Sparta for control over the Greek world. It ultimately left both city-states weaker and ripe for invasion
Peloponnesian War
300
The lower class during the times of the Roman Republic
Plebeians 
300
The apostle who was known for his epistles (letters) and travel spreading Christianity throughout the Roman Empire
Paul
300

He literally wrote the book on geometry. It was called The Elements

Euclid
300

The civilization that was a group of city-states rules by Kings. Key city of Chichen Itza

Maya

400
The battle during the Persian War in which 300 Spartans supposedly held off the entire Persian army. It was a defeat for Sparta, but a key strategic victory
Thermopylae
400
The type of authority that declined in Europe during the Middle Ages. It means 'non-religious'.
Secular
400
The Chinese religion characterized by 'inner-peace', 'harmony with nature' and 'Yin-Yang'
Taoism
400

The father of history. Unsurprisingly, wrote a book called The Histories 

Herodotus
400

The civilization whose economy is based on agriculture and tribute from conquered peoples. Key city of Tenochtitlan

Aztec

500
The war between England and France that helped define their modern borders. Joan of Arc was the French savior
Hundred Years War
500
Church leaders in the Renaissance laid the foundation for the rise of these 'institutions of higher learning' in Europe. They already existed in the Islamic world
Universities
500
The Holy Book of Islam
Qu'ran (Quran, Koran)
500
The father of modern medicine. Doctors still take an oath named after him
Hippocrates
500

The civilization known for its road system, bureaucracy, and emperors. Key city of Machu Pichu

Inca