Well... I believe that the answer to your question is A. because if the Emperor would have to ask the pope if they could go to war and the pope was the one who crowned the Emperors.
True they were willing to teach others in their own language
Probably. In the 1900's the progressive movement was much more focused on improving lives through the use of science and technology. Today it is more focused on social issues.
The tragedy that struck NASA in January of 1985 was, The Space Shuttle Challenger disaster, the challenger blew up killing exactly or around 7 people including a teacher that would be the first teacher to go to space.
The AGE OF REASON<span>, as it was called, was spreading rapidly across Europe. In the late 17th century, scientists like </span>ISAAC NEWTON<span> and writers like </span>JOHN LOCKE<span> were challenging the old order. Newton's laws of gravity and motion described the world in terms of natural laws beyond any spiritual force. In the wake of political turmoil in England, Locke asserted the right of a people to change a government that did not protect natural rights of life, liberty and property. People were beginning to doubt the existence of a God who could predestine human beings to eternal domination and empower a tyrant for a king. Europe would be forever changed by these ideas.</span>
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-GeVontae The Brainly team.