Things about Voldemort that you don't know…
He killed one of his Death Eaters because he pushed him while he was shaving. Because the razor was enchanted with Dark magic, he couldn't reattach his nose.
He accidently looked directly into the sun, and lost his eyesight. Then, the spell that restored his sight caused his pupils to become slitted.
His eyes are red because he was continually with poor lighting.
He chose to wear black robes because "Black is the new Pink!"
Early bolding is very common in the Riddle family (especially in the evil members of the family)
The REAL reason that he closed the Chamber of Secrets is because he had a crush on Moaning Myrtle and was heart-broken when she was killed.
When he discovered that Moaning Myrtle came back as a ghost, he started making the Horcruxes. However, she rejected him he got angry and decided to take up Muggle-born hating (because she was a Muggle-born).
Because Myrtle didn't like him, he 'realised' that love made some one weak and that love isn't the most powerful type of magic.
Voldemort hates Dumbledore because he failed him in a Transfiguration exam.