Your proposition also then applies to Jesus Christ's entire ministry and life on earth.
Most atheists say (and indeed the Romans of his day) that his miracles were mere magic tricks to entertain the masses, and nice fiction for his followers to spread.
Perhaps, but here's something true of all atheists:
The wrath of God is being revealed from heaven against all the godlessness and wickedness of people, who suppress the truth by their wickedness, since what may be known about God is plain to them, because God has made it plain to them. For since the creation of the world God’s invisible qualities—his eternal power and divine nature—have been clearly seen, being understood from what has been made, so that people are without excuse. Rom. 1:18-20 (NIV)
Equally true: Eternity is a long time, especially towards the end. Peace, A