<h3><u>Trade impacted the development of the west African kingdoms:</u></h3>
- Trade affected the advancement of West African countries in the region.
- They had resources like salt and gold and West African kingdoms taxed all exchange convoys stretching their provinces.
- Trade participated in the increase of states that used trade to transport pepper, slaves, salt and ivory with other countries.
- They had their commerce with the European countries and Portuguese were one of the main suppliers and takers.
- The supplies played role in the development and helped merchants and citizens
The correct option is : 
The Event that happened before U.S. Constitution was adopted : -
Harvard College was founded
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Answer:
John Adams (1735–1826), who served as the first vice president of the United States and then as its second President, also influenced the development of constitutional government through his political writings and thought.
Explanation:
