Darwin is now 200, theory still in controversy

It's well known that Charles Darwin's groundbreaking theory of evolution made many people furious because it contradicted the Biblical view of creation. But few know that it also created problems for Darwin at home with his deeply religious wife, Emma.

Darwin held back the book to avoid offending his wife, said Ruth Padel, the naturalist's great-great-granddaughter. "She said he seemed to be putting God further and further off," Padel said in her north London home. "But they talked it through, and she said, "Don't change any of your ideas for fear of hurting me.'"

The 1859 publication of "On the Origin of Species" changed scientific thought forever — and generated opposition that continues to this day. It is this elegant explanation of how species evolve through natural selection that makes Darwin's 200th birthday on Feb. 12 such a major event.

More than 300 birthday celebrations are planned in Britain alone, where Darwin's face graces the 10-pound bill along with that of Queen Elizabeth II. Shrewsbury, the central England town where Darwin was born and raised, is holding a monthlong festival for its most famous son. And a permanent exhibition re-creating some of his most famous experiments is opening at Down House, his former home near London.