How were the quarter-millennium anniversaries of the resurrection of Jesus commemorated?

I am wondering how the 2034 Easter celebration will look like from the perspective of various Christian churches. I am mostly interested in the Roman Catholics. Since we can only guess, I would like to ask about the past instead. What were the 250th, 500th … 1000th … 1750th anniversaries like? Was there anything special, beyond the Masses and the gathering at that square at Rome and the usual "Urbi et Orbi" speech?