It was originally proposed in the 1920s
The two men who proposed the collision theory are Max Trautx and William Lewis. The theory which was proposed in 1918 explains how chemical reactions occur.
it was proposed by charles darwin and albert einstein
Karl Marx proposed the theory of communism.
The chromosomal theory of inheritance was proposed and developed by one Walter Sutton and Theodor Boveri.
schleiden
1855
plato
The theory of evolution by means of natural selection.
The theory of cosmology that Copernicus proposed is called the heliocentric theory. This theory placed the Sun, rather than the Earth, at the center of the solar system, with the planets orbiting around it.
Albert Einstein proposed the theory of relativity in the early 20th century. His theory revolutionized our understanding of space, time, and gravity.
Joseph Wolpe's proposed theory based on classical conditioning explain's the classical conditioning theory is linked with phobias.
George Curvier