how many years is equal to 1 century
Century A century (from the Latin centum, meaning one hundred; abbreviated c.[1]) is a period of 100 years. Centuries are numbered ordinally in English and many other languages. For example, "the 17th century" strictly refers to the years from 1601 to 1700, but popularly refers to be the years 1600 to 1699.
Anno Domini This calendar era is based on the traditionally reckoned year of the conception or birth of Jesus of Nazareth, with AD counting years from the start of this epoch, and BC denoting years before the start of the era. There is no year zero in this scheme, so the year AD 1 immediately follows the year 1 BC. This dating system was devised in 525 by Dionysius Exiguus of Scythia Minor, but was not widely used until after 800.[9][10]