Yes, what was the biggest lie that you can think of, that persuaded you to realize that they were not who they said they were ?
For myself it would have to be the year they picked as the destruction of ancient Jerusalem 607 BC.
I have an assumption this was done purposely to coincide correctly with making 1914 an a important pivotal date
in human history, which by all factual evidence it was not.
Unassuming and deceiving manipulation for self marketing purposes.