who intended the concept of A.D?

Answer 1

The concept of A.D. (Anno Domini = in the Year of our Lord) was developed by the monk Dionysius Exiguus (Dennis the Little) around the 6th century. It was common to designate a year as being a certain one of a ruler of some kind, so he attempted to apply the same system based on the incarnation of Christ. (The Gospel of Luke refers to the 15th year of the reign of Tiberius, for example. Even today, Japan dates years based on the reigns of the Emperors in certain places such as their currency.) Dennis was attempting to work out a system for dating Easter and the use of dating years from the birth of Christ was a by-product. Curiously, he was probably off by a few years as Herod the Great (mentioned in the Gospel of Matthew) died in 4 B.C., while the first census of Palestine occurred in A.D. 6.

Hope that helps.

Answer 2

Anno Domini was a concept for change in the Julian calendar which was used throughout Europe and possibly the world because of Julius Caesar, which could be considered by Eastern Orthodox Church views as the first heretic against Christianity. Julius Caesar established his calendar which was used by the Roman Empire, but the calendar would not regulate the day that spring equinox fell on in relation to the calendar month, which displeased the Christian Churches, who were by the end of the 5th century in control of the western division of the Roman Empire, and wanted Easter to fall on a certain week in April because of the developed ties to the spring pagan rites of fertility that the Romans celebrated before they were Christianized. The eastern division of the Roman Empire existed in whole until the Ottoman Turks overtook Constantinople during the latter part of the time of the Crusades, and calculated Easter based on the Jewish Passover from Egypt by Moses in the Old Testament, which the Eastern Orthodox Church (Constantinople) thought was more in line with orthodox teachings. Therefore, Easter fell in different months, and constantly moved, because the Julian calendar was too long for the Romans.
Later, the years started to be numbered based on their length by spring equinox from the supposed year of the birth of Jesus (I guess everybody noticed their crops were growing in the wrong months and figured equinox was the easiest way to measure), which had attempted to be calculated based on the events listed in the Synoptic Gospels referring to the birth of Christ (which has been miscalculated in history), and to events that happened which forced Jesus to have been taken to Egypt for exile during the bloodlust of Herod the Great, king of Judea, set up by the Romans to keep order in Israel. According to the story, Herod had all male children killed around Bethlehem in order to kill Jesus, whom he was told would be King, and Herod feared a rebellion of the common Jews, for it would bring the wrath of Rome. This setup of numbering years based on the birth of Christ was not indoctrinated unitl the 6th Century, but was adopted by the masses before then, and was in use when the Julian Calendar was replaced by the Gregorian Calendar.
A Catholic Pope named Gregory XIII, with the assistance of his astronomers, which the western Catholic Church had always had, established the Gregorian Calendar, which is used almost globally today. The Gregorian Calendar is more consistent with seasonal changes, and is more accurate when compared to the tropical year (the amount of days in between two consecutive passes of the sun through the equinox).
Anno Domini was the term for the year number which was used before the time of the Gregorian calender implementation by Gregory XIII, and assigned a recognizable and accepted number to linear historical events from before that time until the present.

Answer 3

the church in the middle ages

Answer 4

dont know. But i know its Latin for,,,Year of our Lord.