Another word for dating ad
His purpose was to determine the correct date for Easter under the direction of Pope St. Prior to this time, one method for determining Easter was based on a 532 year calendar cycle stemming from the Alexandrian era. Many different calendars have been used since man began tracking time. The use of BC and AD for numbering calendar years was invented by Dionysius Exiguus in 525 AD.that is found in email addresses is most commonly referred to as the "at" symbol.Surprisingly though, there is no official, universal name for this sign. Dionysius was asked to determine a method for calculating Easter that would then be used by the entire church.
As a result, the monks looped the "t" around the "a" and created it into a circle-eliminating two strokes of the pen.
As a result, there is really no official name for this symbol.
History tells us that the @ symbol stemmed from the tired hands of the medieval monks.
During the Middle Ages before the invention of printing presses, every letter of a word had to be painstakingly transcribed by hand for each copy of a published book.
The monks that performed these long, tedious copying duties looked for ways to reduce the number of individual strokes per word for common words.