Why are we constantly being lied to?
Answer: Satan does not want the Knowledge of God to flourish in humanity.
Isn't it interesting that Jesus made the point that He is Truth?
Isn't it also interesting that Paul said we must "let God be true and every man a liar"?
Isn't it interesting that the Bible says that there is "science falsely so called"?
But you say "men came up with these 'facts'". Here is an over-arching fact: "Men are either influenced by God (truth) or by Satan (liar).
Eve was influenced by Satan. Satan did not talk to Adam. Eve did. So the influence on Adam was indirectly from Satan through a person whom Satan had deceived.
We are warned of "lying wonders" that will manifest in the last days. Technology has made the wonders possible and Satan has made the lying probable.
You would be wise to discount everything you were taught by secular educators because it has all been tainted with lies.
Jesus is Truth.
His Word is Truth.
His Holy Spirit is the Spirit of Truth.