That statement is true
A country could be categorized as a sovereign power if its government has a total control over their citizen. Such as what they have in North Korea
A country where the citizens have the right to directly vote their own leader can't be in any way categorized as a sovereign power
        
             
        
        
        
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“…she collaborated with other well-known (white) computers...on projects such as compiling a handbook for algebraic methods for calculating machines.”
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Francisco Coronado was born in Salamanca, Spain in 1510 and came to Mexico in 1535. He was a Spanish conqueror, or conquistador who visited New Mexico and other parts of what are now the southwestern United States and hoped to conquer the seven cities of gold. In 1540 he was sent to find these cities but discovered them to be only poor Indian pueblos in what is now New Mexico. In 1541 Coronado went to look for "Quivira," a land said to be rich in gold. He reached what is now eastern Kansas, but found only Indian villages. Fransisco's expeditions failed to produce gold. Coronado and his men returned to Mexico in 1542. Some of his men discovered the Grand Canyon of the Colorado.
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During the time of the monks the literacy rate were extremely low, only about 3% could read and or write and most were monks. The monks copied down ancient writings like the Bible and taught the Gospel to other people who had taken the opportunity. 
Missionaries spread were people, who probably learned it from the monks, who traveled around to preach the Gospel most later became martyrs.
Martyr refers to the people who are willing to sacrifice their life for a certain cause. In the past, many Christian missionaries become a martyr by defending their religion in the face of torture and execution. As the news of their death spread, they indirectly showed the strength of their belief which ignite other people's will to adopt the religion.
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