On what basis do you conclude that macroevolution is an historical fact?
You should not be asking for proof when your entire belief system is based entirely on faith, which is the lack of proof coupled with the refusal to consider any opposing viewpoint. I could show you any amount of proof, but with a closed mind, nothing could convince you.
Darwin was a Naturalist and a Christian. He had both faith in God and open mind, as they are not mutually exclusive.