Attribute God Rightly
Don't attribute to humanity what God has given. It takes away the reality of His praiseworthiness, it lies and it's ugly.
God and not ancient cultures have preserved knowledge in His Word.
Remember the currents God said are in His oceans, and simply be happy that we know about them (they are very helpful to our ships). It's not the exception that makes the rule that we know more than ancient cultures that happened to know and record the fact, but thank God for allowing us to know the fact of it by His Word and to be able to use the fact with our understanding that He has built into us!