Sunday, April 8, 2012

Calculating Easter Day

The Resurrection of Christ (Kinnaird Resurrection)
The Resurrection of Christ (Kinnaird Resurrection) (Photo credit: Wikipedia)
The word "Easter" derives from the Latin Pascha and corresponds to the Hebrew Pesach, which means Step.
Solemnity of the Christian Church in commemoration of the resurrection of Jesus Christ is celebrated the first Sunday after the first full moon following the vernal equinox, the applicant between March 22 and April 25, initially was celebrated every Sunday, the anniversary should be at the Council of Nicaea in the second century AD, which also established to set this party on the first Sunday after the first full moon after the vernal equinox.
For Christianity is the first and fundamental feast of the liturgical year, for Christ is the "transition" from earthly life, through suffering, the eternal life for Christians is the "transition" from sin to new life in Christ, through baptism.
The Easter celebrations that have their culmination in the Paschal Triduum on Thursday, Friday and Holy Saturday, and especially in the Easter Vigil and Easter Day, are prepared from Lent.
The joy of Easter continues for seven weeks, "as a day of celebration and joy" and ends with Pentecost.
The mathematical calculation of the date is very complex and difficult because you should know: the letter Sunday, the epact (the age of the moon on the 1st January of the year you want to calculate) the Roman indiction, the solar cycle, the number aureus (position within the loop of the methodical latter meaning a period of 19 years by superimposing the solar cycle).
The complexity of these calculations can be overcome by a simple formula due to the mathematician, astronomer, physicist and surveyor German Karl Friedrich Gauss, which is still used:
Let A be the year for which you want to calculate Easter, M and N are the values ​​referred to below should indicate multiplication table and the remains of the following divisions:
A: 19 with "a"
A: 4 with "b"
A: 7 with "c"
(19 x "to" M +): 30 with "d"
(2 x "b" + 4 x "C" +6 x "d" + N): 7 with "and"
for the years ..... ..... N M is worth
1700-1799 ........ 23 ......... 3
1800-1899 ........ 23 ......... 4
1900-2099 ........ 24 ......... 5
2100-2199 ........ 24 ......... 6
Then Easter will fall on the day (22 + "d" + "and") in March, or, if the resulting figure exceeds 31, the date ("d" + "and" - 9) in April, where 22:09 is two fixed numbers.
In the rich theme of Easter customs appears the tradition of eating the lamb, the Jewish Passover meal recalls the memory of the exodus from Egypt by the "passing" of the Red Sea, the "step" that is, freedom from slavery in Egypt ; to celebrate the renewal Moses commanded the people to sacrifice a lamb, all white, tingerne the doors with the blood, roast it and eat it with unleavened bread, on the evening of the fourteenth day of the first month of spring, for the Jews, then eat the 'Lamb recalls the sacrifice offered to the God of Israel before leaving Egypt, for a Christian is "the Lamb of God," the lamb of Christ, the innocent victim and immaculate.
The eggs blessed reminder that in times past were forbidden during Lent and then reappear on the table along with the kid, lamb, salami with the meaning that the time of penance and fasting was over, were brought to be blessed before being donated as a symbol of hope, abundance and new life.
Around the fifteenth century were served for lunch boiled eggs painted by hand and spread in many European countries the tradition of starting breakfast with an omelette made ​​with eggs laid by hens on Good Friday.
In the sixteenth century began the custom of hiding the eggs with a surprise and the importation of cocoa from Mexico entered the surprise egg chocolate.
The tradition of Easter dove, which is the symbol of the Holy Spirit, should not appear on the table at Easter, Pentecost, but because it wants to commemorate the peace between God and men returned after the flood, in fact it was a dove to return Ark with an olive branch in its beak.
A popular tradition of the evening of Holy Saturday is the one that is still followed in Florence, during the rites of the Resurrection and a dove (now no longer alive but artificial) is started from the main altar with a small rocket on a wire and sliding it set fire to a cart it all meant to symbolize the purity of the soul and purifying power of fire is always present in the ancient rites of Christianity but, very often, replaced it with holy water

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