[jpdoctor]

> Christian and most probably observe or note Easter.

This was already on HN at the time: There is no agreement on a date for Easter.

[lotharbot]

There's also no agreement on a name for the Christian holiday celebrating the resurrection of Jesus. Most of my Orthodox friends call it "Pascha" (and set its date based on the Julian calendar), and my Messianic friends consider it part of the larger "Pesach" (or "Passover" when they decide to communicate it in English). Some simply call it "Resurrection Sunday".

[dragonwriter]

> There is no agreement on a date for Easter.

Sure there is.

In fact, there are several agreements among different subsets of Christianity.

[ImprovedSilence]

indeed. It is a moveable feast: http://en.wikipedia.org/wiki/Moveable_feast

[russellsprouts]

Different segments of Christianity celebrate Easter on different dates, even in the same year.