The purpose of a ziggurat was to create a place for deity - it had many levels and it was a huge temple. Each level was a sub-temple for less important gods, while the highest level was believed to be a place reserved for the most important god.
Explanation:
The Columbian Exchange transported plants, animals, diseases, technologies, and people one continent to another. Crops like tobacco, tomatoes, potatoes, corn, cacao, peanuts, and pumpkins went from the Americas to rest of the world.... The triangular trade was the trade between Europe, Africa, and the Americas.
The French and Dutch settlements differed from the Spanish colonies in that they were created mainly to trade and develop industries, while the Spanish were primarily concerned with gold and silver excavation, and then later with sugar exportation.
The trade route to Byzantium is what led to all the others.
Hope this helps :)
~Davinia.