They kept people afraid for their lives and of that of their loved ones. SO if they were afraid they would not speak out against the government.
Answer:
The history of America started in 1492.
Explanation:
The story of America begin in 1492 with the arrival of Christopher Columbus who was an Italian explorer. Before 1492, the america is a place where the culture of the native people progress and free from the European contact and their conflict. With the discovery of America made by Christopher Columbus, the Italian started colonizing in these areas due to attaining resources such as gold, silver and other valuable products.
The answer is Marie Curie