For those who observe, remember that the new commandment given this night is to love one another.

The #LastSupper ( #MaundyThursday ) is associated with a #Passover #seder observed by Jesus.
Hence, the "1st #fullmoon after the #vernalequinox " part of dating #Easter (Feast of the Resurrection), which occurs on the following Sunday.

Last Supper painting by Jacopo Bassano c. 1546 courtesy of Galleria Borghese 144
#calendar #timekeeping #astronomy