Government was based on a republic, Citizens vote for leaders (the Senate) who makes laws

Government was based on an emperor who gained power through the Mandate of Heaven.

Government was based on a direct democracy; Citizens vote directly for laws.

Invented advanced paper-making techniques that helped increase literacy.

Invented an examination system based on Confucian ideas to choose government workers.

Invented legal procedures such as jury trials and witness testimony; Had a written law code.

Invented new architectural designs such as domes, sporting arenas, and aqueducts.

Invented new forms of literature and theater, such as dramas and comedies.

Invented new mathematical ideas such as numerals, zero, and pi.

Invented philosophy; Philosophers such as Socrates, Plato, and Aristotle questioned ideas.

Invented silk-making technology that attracted trade from outsiders; Led to Silk Road

Invented thousands of geometric proofs such as the Pythagorean Theorem.

Made new geographical observations such as the discovery that the Earth is round

The religion of Christianity was created in the Kingdom of Judea during this classical empire.

The religions of Hinduism and Buddhism were spread during this classical empire.