What is the full form of AD

AD: Anno Domini

AD stands for Anno Domini. It is a Medieval Latin term. It means "in the year of our lord". This term is used to represent the year after the Christians God Jesus Christ. Sometimes AD is also spelled as After Death which is totally wrong. Actually, this is a misconception because AD and BC both are used to represent years count individually, and BC stands for Before Christ. So many people misunderstand this term.

History

AD was discovered by a Monk named Dionysius Exiguus. It had replaced the Diocletian era that had been used in old Easter table.

Purpose

The main purpose of BC/AD is to create a dating system which can make the birth of Jesus Christ the dividing point of the world history. However, Jesus was not born in 1 AD, it was around 6-4 BC when he was born.

Usage

The Julian and Gregorian calendar uses AD and BC as a designation to label number of years. AD is used to specify the start of the Epoch and BC specifies before the start of the Epoch. In recent times, the term BC and AD are replaced by B.C.E and C.E where B.C.E means "Before Common Era" and CE is used to denote "Common Era".