How could the apostles of Christ write the sciptures hundred of years after they died?

Yes, there were no contemporary accounts of the life of Jesus. People started writing about him around 200 years after his death. How could the apostles of Christ write about him if they were dead at the time? Yeah and is science flawed? Here we are believing that the earth has been around for millions of years and according to the bible it is only 6,000 years old? Hey, this proves it all guys. Lets get rid of science and replace it with your profoundly ignorant views and brainwash our children into believing in it. To set the record straight, I do believe in God and the God I believe in does not share the same sinfull characteristics that your God does which includes genocide, biggotry, hipocrosy, hatred, along with all other sins that have been attributed towards mankind. The christian God sounds just like a human being with an evil nature who shares the same imperfect characteristics that just happens to be GOD ALLMIGHTY!!