Maslow"s theory
The theory of relativity was first proposed by Albert Einstein in 1905, with his publication of the special theory of relativity. Later, in 1915, Einstein further developed his theory with the publication of the general theory of relativity.
Have a theory which you think is viable.
John Dalton first pursued research into atomic theory. He was the first person to propose the existence of the atomic structure.
He first proposed this theory in 1943 in his paper, "A Theory of Human Motivation"
schleiden and schwann
Theodor Schwann wrote the first two parts of the cell theory
The first social theory of aging is the Disengagement Theory, proposed by Elaine Cumming and William Henry in 1961. The theory suggests that as people age, they naturally withdraw or disengage from society, leading to mutual separation between the older individual and their social roles.
The atomic theory was first proposed in the 5th century BC by the Greek philosopher Leucippus and his student Democritus. The theory of relativity was first proposed by Albert Einstein in 1905 with his special theory of relativity, followed by his general theory of relativity in 1915.
Charles Darwin's first discovery was the theory of life. This is what is commonly referred to as the theory of evolution.
Charles Darwin was the first scientist to propose the theory of evolution by natural selection in his book "On the Origin of Species" published in 1859.
Might be helpful if we new the theory....