Which early civilization had the first carefully Planneo cities with sophisticated plumbing?

How was Poseidon worshipped? How did her-nan Cortes defeated the Aztecs? Where was St. Castorius born? What is an antonym of plebeian? Why was zeuss arbitration of the dispute successful? Who was real mother and father of kard? How did people know about greek mythology? What did hades do with the helmet? How do you auto fire on realm of the mad god? How were myths originally shared? When was Sultanate of Khandesh created? What steps does Odysseus take to prepare for their escape? What influences hades? What where the Incas inventions? What food did the ancient Greeks eat? How did the vast Inca Empire address the problems caused by its size? Where did the ancint egypitians go to be judged? Did Odysseus get home to his wife and child? Which describes accomplishments of the Persian Empire? What type of shelter did the ancient Persia use?