Evolution — Why Theory, Not Fact

An oft-repeated question by Muslim apologists who propound the case for creationism over Darwinian evolution is: "Why is it called the theory of evolution and not the fact of evolution?" Well, the very question itself is based off farcical suppositions that anything proven to be true in science is termed to be a fact.

The reason why we use the phrase "Theory of Evolution" is the same as why we use phrases like Theory of Gravity or Pythagoras' Theorem. The word "theory" in ordinary English and in scientific jargon has vastly differing definitions.

In the English language as used conversationally, the word "theory" equates to a hypothesis in scientific jargon which is basically an assumption predicting the end result of an experiment. If the prediction is proven to be true following numerous peer-reviewed experimentation or accurate to an acceptable level of probability,
the hypothesis is accepted as a theory. One such among them is the Theory of Evolution.

— Fahim Ferdous Kibria