yes, he is right the answer is,
Galileo's most important scientific contributions were in the field of physics. ... Using the telescope, Galileo discovered the mountains on the moon, the spots on the sun, and four moons of Jupiter. His discoveries provided the evidence to support the theory that the earth and other planets revolved around the sun.
I think you're asking whom he lost to, in that case it was Woodrow Wilson
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the ruling class that was developed was called slavery aristocracy. this ensure power for the sultan because the people he enslaved he would train them to become part of his army he also created a bureaucracy
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