Interestingly, Lincoln freed the slaves and Darwin was a fervent abolitionist. The world is different because of these men.
There are those who do not hold either man in esteem. Many Biblical Literalists see Darwin as little better than an agent of deception and perhaps even the devil's stooge. And there are those who think "Honest Abe" had no genuine interest in freeing the slaves.
I do not share the views of these critics. In place of scepticism and scorn I suggest that we take some time today and reflect on their lives and influences. What both men have done to better our world and further our knowledge.
Here are some good places to start:
It is also important to note that today is also the 100th anniversary of the foundation of the N.A.A.C.P, which was founded quite intentionally on Lincoln's 100th birthday.