Easter known as Holy Week, is very special in the Christian tradition. The Sunday before Easter is Palm Sunday, with the Wednesday before Easter being known as Spy Wednesday. The last three days before Easter are Maundy Thursday, Good Friday and Holy Saturday (sometimes referred to as Silent Saturday). Palm Sunday, Maundy Thursday and Good Friday respectively commemorate Jesus' entry in Jerusalem, the Last Supper and the Crucifixion. Maundy Thursday, Good Friday, and Holy Saturday are sometimes referred to as the Easter Triduum (Latin for "Three Days"). Many churches begin celebrating Easter late in the evening of Holy Saturday at a
Chronology of Jesus compatible Last Supper on Wednesday, 1 April AD 33, followed by a compatible crucifixion on Friday, 3 April AD 33. Given these assumptions he argues that the calculated date of Wednesday 1 April AD 33 for the Last Supper allows all four gospel accounts to be astronomically correct, with Jesus celebrating Passover two days before his death according to the original Mosaic calendar, and the Jewish authorities celebrating Passover just after the crucifixion, using the modified Babylonian calendar. In contrast, the Christian church tradition of celebrating the Last Supper on Maundy Thursday would be an anachronism. The calculated chronology incidentally