Hitler had a theory that you could get away with telling a lie, no matter how big the lie was but mostly because it was so big, people will believe it if you repeat it enough because a big lie is so unlikely, people are more likely to accept it.
Probably before we even came down from the trees, we have lied, faked, forged, hoaxed, deceived, defrauded, and scammed each other but there is a range of lies that run from a little white lie to a partner to spare their feelings to massive, huge lies that results in widespread death, but what is the greatest lie ever told.
My mind immediately goes to the Trojan Horse, we even have a saying today about not trusting Greeks bearing gifts but as i start to write this post i think of Bill Clinton saying 'I did not have sexual relations with that woman, Miss Lewinsky' and the stained, blue dress that appeared shortly afterwards that showed sexual relations were had with that woman after all.
The problem with trying to consider the biggest lie ever told in history is that it depends upon your ideological stand point. I can imagine if i asked a wide enough range of people they would choose either Christianity, Communism, global warming, Iraq, Roswell, Capitalism, 9/11, the moon landings, the Koran, Santa, Capitalism, Evolution, Socialism, the Bible or plenty of other things they consider have been used to dupe us so i gave up on it as far too big and controversial subject.
Instead, here are some of the stupidest things Ronald Reagan said: 'Trees cause more pollution than automobiles', 'All the waste in a year from a nuclear power plant can be stored under a desk', 'I've noticed that everyone who is for abortion has already been born', 'I went down to Latin America to find out from them and learn their views. You'd be surprised. They're all individual countries' and 'The Russian language has no word for freedom'.