Maundy Thursday have an Anglican patrimony, retain the traditional English term "Maundy Thursday", however. An article in the 1911 "Catholic Encyclopedia" used the term "Maundy Thursday", and some Catholic writers use the same term either primarily, or alternatively. The Methodist "Book of Worship for Church and Home" (1965) uses the term "Maundy Thursday"; the "Book of Worship" (1992) uses the term "Holy Thursday", and other official sources of the United Methodist Church use both "Maundy Thursday" and "Holy Thursday". Both names are used by other Christian denominations as well, including the Lutheran Church or portions of the Reformed Church. The Presbyterian Church
Determination of the day of the week the intended design objective. The tabular forerunner to Tøndering's algorithm is embodied in the following K&R C function. With minor changes, it was adapted for other high level programming languages such as APL2. Posted by Tomohiko Sakamoto on the comp.lang.c Usenet newsgroup in 1992, it is accurate for any Gregorian date. IBM's Rata Die method requires that one knows the "key day" of the proleptic Gregorian calendar i.e. the day of the week of January 1, AD 1 (its first date). This has to be done to establish the remainder number based on which the day of the week is