The correct answer is Timbuktu. It became the greatest city because it was a melting pot for traders from all possible nations because it was wealthy and developed compared to other places. It was a cultural and a trading center because the ruler knew how to rule properly and made Timbuktu one of the greatest cities in the world.
Germany's resumption of unrestricted submarine warfare
Answer:
C. Erechtheion
Explanation: it was known as the temple of Poseidon and Athena.