As mentioned before, someone else would have discovered the theory of evolution, but no one else could have done what Abe did.
Interesting. I see it exactly the other way around. Darwin was influenced by Charles Lyell's
The Principles of Geology, which was a discovery of geological evidence that suggested that the Earth was much older than previously thought and had gradually changed over extremely long periods of time. Lyell was right. Darwin wondered if that concept could not be extended to include biological life, and he went in search of possible evidence. Of course he found massive amounts of it. No one else was out there as thoroughly and meticulously working on that as he. Now at SOME point someone was likely to discover it, but Darwin saved us time with his invaluable contribution.
The Civil War, on the other hand, was bound to happen - if it were not for a series of bad presidents who sought to appease the South, it would have happened sooner. By the 1860s the situation had more than reached a boiling point. Abe, let's not forget, was a sort of moderate hero - he went easier on the South than some others would have.
Lincoln; while I believe in evolution, it cannot escape the binds of creation. I respect Darwin, but his theory is unfairly used by atheists. In fact, he was an agnostic.
Evolution most certainly can "escape the binds of creation." Because it's a natural process or law, like Kepler's Law of Harmony, which means that we don't need a "God element" in the equation. It's actually an old argument that if there is a God, there's not much at all for Him / Her / It to do.
On a scaled of 1 to 10, 1 being a creationist and 10 being an atheist, agnostics are around 7.5 or 8 or so. The point being, science uses the material world to explain the material world, not the supernatural / shadow world to explain the material world. In that sense evolution is not misused by atheists.