
On November 24, 1859 Charles Darwin first published "On the Origin of Species." It first introduced the theory that populations evolve through a process known as natural selection. Natural Selection in layman's terms is reproduction of the fittest. Over the next 150 years this book has become the cornerstone for the science of biology today.
I feel I should probably define science as I am referring to it above. Science: The systematic study of any phenomena with the purpose of creating a correct repeatable prediction, usually through use of the scientific method (Question, Research, Hypothesis, Experiment, Conclusion, Communication). In other words,
1.What happens if I throw a ball in the air?
2.History shows that it will fall to the ground.
3.My guess is that when I throw a ball into the air it will fall to the ground.
4.I do my experiment.
5.The conclusion is that the ball fell to the ground.
6.Then I should call all my friends and tell them what just happened.
Now, for anyone that doesn't know, natural selection has been one of the best examples of predictive science that the world has ever known. Our genetic research has confirmed its predictions, our radiocarbon dating has confirmed its predictions, and our psychology has confirmed its predictions, just to name a few. In fact every realm of natural science involves evolution on some level; geology, oceanography, astronomy, meteorology, biology, psychology, radiography, biophysics, chemistry, etc.
Now I get to the point of this post.
The overarching theory of natural selection modifying the characteristics of a population over time is called evolution.
Evolution is a Fact.
And just for those of you out there that may want to argue the point now I will define the word fact. Fact: something that has been tested or observed so many times that there is no longer a compelling reason to keep testing or looking for examples "ex: you can make electricity by turning a magnet inside a coil of wire". This is in contrast to the other definition which is a verifiable observation (ex: "the pen is on the desk").
And just to drive the point home, natural selection is a fact (verifiable observation) the same way that the earth is round.
We have to educate in order to overcome our ignorances. There was a time when people thought that the earth was 6000 years old and flat. I urge you to teach evolution to your children, it won't condemn them to Hell, in fact it might save our planet. And if you don't know how to, read this book.

