Plate tectonic theory was officially developed in 1912. It was developed by Alfred Wegener through his continental drift theory.
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Francis Galton developed the theory of Eugenics
john dalton developed the atomic theory , which he published in 1803
Adam Smith developed the theory of classical capitalism.
Albert Einstein developed the theory of relativity. He first proposed the special theory of relativity in 1905 and later developed the general theory of relativity in 1915. These theories revolutionized our understanding of space, time, and gravity.
Louis Pasteur developed the germ theory for disease!
The instrument that was necessary for Cell Theory to be developed is the microscope.
The Geocentric Theory was developed by Greek astronomers. The theory was that celestial bodies moved around Earth in circular paths.
British scientist Charles Darwin (1809-1882) developed the theory of evolution (the theory that living organisms developed slowly over long periods of time).
Social identity theory was developed by British social psychologists Henri Tajfel and John Turner in the 1970s. They proposed that individuals define their self-concept based on their identification with social groups.