Symbolic ceremony performed by all Christians.
Although ways of going about recieving the Lord's Supper vary throughout denomintations, all sects eat bread and drink wine (or grapejuice, whatever) as a symbolic gesture of Jesus' bloodshed.

The first Lord's Supper (The Last Supper) look place in The Garden of Gethsemane with Jesus and his 12 Apostles. To preserve his memory, Christ instructed his followers to do the same until he came again.

Also called the Eucharist.