- Developed the Mayan Calendar.

- Had a peak time in A.D. 250 where they reached intellectual heights.

- Build amazing pyramids

- Human sacrifices were made only on special occasions, like when a new ruler came into power.

- Didn't vanish like people assume.

-Causes of Collapse: drought, deforestation, war, climate change, and diseases that the Spanish brought in 16th century.

- Had slaves, which were well-treated.

- Children of slaves were free, and slaves could purchase their freedom.

- Education for everyone regardless of gender or social class.

- Well educated as a culture, but boys did have a wider education.

- Women were taught how to run the home, but had lots of power in society.

- In general, the common people were quite poor.

- Most people lived in houses made of mud bricks.

- Baths were very important and stressed.

- Sacrificed their prisoners to their gods.

- Empire stretched 2,500 miles.

- Had rich coastal settlements, high mountain valleys, forests, and desserts.

- Controlled around 10 million people.

- Largest empire on earth during 1532.

- Cuzeo was the center of the Inca world.

- When the ruler died all possessions went to other male relatives, but not to the son.

- New ruler had to create his own income.

- Great builders, and loved stone.

- Had a network of highways.

- Everyone in society was expected to contribute.