The Bible was written using about forty Holy Spirit inspired men to write down the words that God gave them over a period of 1500 years. Some of them lived to tell the story themselves, others were directed by the Holy Spirit in what to write. Take Moses for instance, he was born around 1635 BC while the earth was created around 4004 BC, there is no way Moses could have seen what was going on then, but he was the author of the Book of Genesis. One example of being led by the Holy Spirit to write about God creating the world.

Think of it this way, a court transcriber transcribes, types, or writes, everything that is being said in a court room. He or she is not coming up with these words on their own, they are typing word for word what is being said. These men were transcribing or putting on paper what God told them to write. 

There are countless events in history that prove all the prophecies, wars, and even catastrophes of the world existed, including the flood recorded in the Book of Genesis, over 4000 years ago.

Scripture Proving the Holy Spirit Inspired Men to Write His Word:
"All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:" - II Timothy 3:16

"But there is a spirit in man: and the inspiration of the Almighty giveth them understanding." - Job 32:8

"He that hath received his testimony hath set to his seal that God is true. For he whom God hath sent speaketh the words of God: for God giveth not the Spirit by measure unto him. The Father loveth the Son, and hath given all things into his hand." - John 3:33-35