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Answer:
A convention is an agreement between 2 countries helping over a particular problem, less formal then a treaty . Also a convention is a gathering where people meet and discuss a problem or similar interests.
Clothes, food, essentials
<span>The Allies might attack Germany on the French side because the Germans had no troops at that border.</span>
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.