You can bet that God knows the date that his only begotten Son was Born. And God also know the date that Mohammed was born. God sent his son to die for our Sins so we could have eternal life in Heaven. Mohammed wants his followers to kill somebody to get into Heaven. Jesus tomb is empty and Mohammed is still in his grave.
In fact, people line up everyday, and wait hours, by the thousands to see Jesus' empty tomb making it the #1 Tourist destination in Israel. We will all one day line up in front of Jesus to account for every Word (Our Support) and Deed (Our Vote).
Some that call themselves Christians have replaced God with a Man that thinks he is a God. We will know who they are because they will stand before Jesus on day and he will say, "You confess to be a Christian, but I don't know you."
Oh yes "The Jerk", even you, Mohammed, Hitler, Saddam, and Gaddafi will stand in Judgement for their Sins.