Geography
Hinduism
Buddhism
Maurya Empire
Gupta Empire
100

The geographic protection from invaders in india

The Himalayan mountains

100

Sacred river in Hinduism

The Ganges river

100

A similar religion to Buddhism

Hinduism

100

Made empire more easier to govern by

Splitting it into provinces

100

Most powerful emperor

Chandragupta II

200

The sacred river

Ganges River

200

The sacred text

Vedas

200

Founder of Buddhism

Siddhartha Gautama

200

The very north of this empire

Modern day Afghanistan

200

Main religion during empire

Hinduism

300

Length of Indus River

2,000 miles long

300

The sacred text language

Sanskrit 

300

Time it took for enlightenment under the tree

40 days

300
This made the empire difficult to govern 

The cultural differences

300

Scholars during this period made big advancements in this

Mathematics, like close approximation to pi, advances in trigonometry, use of negative numbers, etc.

400

Seasonal wind name

Monsoons

400

Karma

Sum of ones good/bad actions

400

Pillars of Buddhism

4 noble truths and the eight fold path

400

The one who seized control of the empire 

Ashoka

400

Inspiration of Gupta structures and architecture

Buddhism and Hinduism

500

The regions connected to India through trade

East Africa, Arabia, Persia, Southeast Asia including Indonesia and the Philippines, and then China in the east.

500

Dharma

Duty/ responsibility of your caste

500

What Buddhism refuses

The caste system

500
Cause of the empires fall

Emperors being weak after Ashoka, Hindu priests  once again reimposed the caste system as the Mauryan Empire gradually shrunk. And then, the last of the Mauryan leaders were killed

500

Elevated topics/objects during reign of most powerful leader

culture, art, mathematics, philosophy, religion, and astronomy