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100
Claudius Ptolemy
Ptolemy had a geocentric hypothesis that the earth was the center of the universe. He believed that the other planets and the sun moved around the earth. This was the first ever hypothesis on how the universe worked. -
100
Geocentric Theory
Scientists believed that the earth was stationary and the whole universe revolved around it. The sun, moon, planets, and stars revolved around it. This would explain why objects fell toward the earth. This was the first astronomical theory the helped the people get an idea about what space/ the universe looked like. -
500
Alchemists and Astrologers
People put their trust in religious thinking and Greek and Roman plans to help understand the human instinct and science. This is important because it was the beginning of science and it helped scientists find things out about humans and the universe. -
1200
Scientific Method
The scientific method is a procedure that researchers use to try to find an exact replica of the world. This method tries to help limit the bias in the experiment when scientists are testing a hypothesis. -
1200
Roger Bacon
Roger Bacon was an English philosopher and scientist from the 1200. He was a monk who practiced alchemy. He led experiments rather that following and depending on religious thinking. He is very important because he started the beginning of the scientific method and affected most of the researchers after him. He caused the research of nature and humans to be much more skillful and easy-going. -
1500
Nicolaus Copernicus
Nicolaus Copernicus was an astronomer, scientist, scholar, and mathematician. He believed that the earth was the center of the universe. It was called the heliocentric theory. People saw him as a brave scientist who stood up for his ideas even when that is not what most people believed at the time. -
1500
William Harvey
William Harvey had a theory about the circulatory system that disproved the one that Greek physician Galen made. He said that the Circulatory System was a continuous flow of blood and not different systems. -
1500
Heliocentric Theory
The heliocentric theory was developed by Nicolaus Copernicus. He believed that the sun was the center of the universe, and all of the other planets revolved around it. People now doubted the geocentric theory. This theory is now what everybody believes in today -
1500
René Descartes
René Descartes tried to be a practical scientist but failed, he tried at a mathematician and succeeded. He helped people understand how the way a point moves could be mapped on a graph. He changed the way people think by using evidence and facts to support what they are thinking. -
1500
Francis Bacon
Francis Bacon was an English philosopher who helped develop the scientific method. He found evidence and made scientific theories by making observations. He changed people's thinking and showed that you couldn't trust anything unless it was proven by a reliable source. -
1500
Andreas Vesalius
Andreas Vesalius was a Flemish scientist, who challenged the ideas of the Greek physician Galen. He did many studies of the structure of the human body and gave people more questions to fine answers too. His research lead to scientists finding cures for diseases that hadn't had a cure in the past. -
Johannas Kepler
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Galileo Galilei
Galileo Galilei was an Italian scientist and scholar who made observations that made the base of modern physics and astronomy. He had a major role in the scientific revolution and was named "The Father of Modern Science." -
Isaac Newton
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Joseph Priestly
