Knowledge without Truth is information without illumination and its all like icing without cake, can be sweet, but it ends up making you sick.

History can come in handy. If you were born yesterday, with no knowledge of the past, you might easily accept whatever the government tells you. But knowing a bit of history--while it would not absolutely prove the government was lying in a given instance--might make you skeptical, lead you to ask questions, make it more likely that you would find out the truth.