Noah's Ark has been found by archaeologists along with Abraham's ancient city of Ur. A universal flood as stated in the Bible during Noah's day has been authenticated by many archaeological discoveries. These records by numerous races all over the world give accounts of this flood.

And hundreds of other instances can be given to authenticate the truthfullness that is the Bible. Such as God sitting on the circle of the earth in Isa. 40:22 implying the earth is round (personally, I believe Columbus read the Bible). The Bible states that the life of a person is in his blood. It also describes the Hydrological system (how the Earth is watered). It states many scientific laws that we know of today and it stated them long before they were discovered(?) by our scientists.
Therefore, we can put our trust in what the Bible has to say.