Little do you know how little you know. But don't make the mistake of presuming that the same is true of everyone, especially people who spend their entire lives studying specific topics.
A theory is above fact. A theory of science by definition is study and observation of a material thing that exist by fact, evidence, empirical evidence, and a logically deducted explanation of the facts, evidence, and empirical evidence. Evolution by definition is change and is a fact. That evolution exists as fact is easily proved and to deny evolution would deny one's own existence and reality. First, evolution can be observed by simply looking in a mirror an determining that by reproduction change has occurred. You are different from your father, mother, or any of your ancestors and evolution and change has occurred. If no changes were occurring you would be a clone of all before you. Second the evidence is that if examined by thousands all would agree that you are not exactly the same as those before you even though you may possess similar traits. Third is the empirical evidence that change or evolution always occurs with reproduction in all species. A simple test is that out of 6.7 billion humans on earth today no two are exactly the same. The theory of evolution is accepted because it is observed, fact, there is evidence, the evidence is tested and the logical explanation is reproduction. Origin of the Species is another theory and attempts to explain origin by evolution as the fact. It is simply that over a period of time a species by reproduction and the forces of nature change or evolute to such a difference that it is not of the small changes and differences of the original species and that the difference is so great and the traits so few that a new species exists by evolution. The theory for the Origin of the Species is supported by first, observation of evolution, second, evolution is a fact, third, there is evidence that severe changes occur and forth, the evidence has been studied and tested and the logical deduction is that species evolve by change or evolution over a period and are by reproduction and forces of nature. The theory exists and continues to exist by evidence but experiences different explanations as there is more evidence, or the evidence is refuted. However there is no evidence to refute the theory itself by scientific method but only by one's philosophy. It is illogical and without any scientific support to suppose that each species that ever existed, exists, or will ever exist and that all the changes that occur in such species or origin exist as a separate change for each by a new creation or ID