Arrival of Europeans _ colonial period _ revolutionary war .
European colonialism in africa brings a positive impact such as : Religious can be used as a spiritual basis for African society, build a school for education of Africans' children, hospital for a better healt of Africans' society as well as in economic field, European build a markets.
The held state conventions where the representative voted for or against the ratification.
Citizens did not vote to ratify the constitution directly as in referendums. The ratification therefore did not take place immediately and over 78 amendments were proposed in the course of the ratification process.
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Answer:
knowing inventions can be protected encourages people to create new things
