What was the first year the internet was used?

In most calendar systems, the date consists of three parts: the day of month, month, and the year. There may also be additional parts, such as the day of week. Years are usually counted from a particular starting point, usually called the epoch, with era referring to the particular period of time. (Note the different use of the terms in geology.) The most widely used epoch is a conventional birthdate of Jesus (which was established by Dionysius Exiguus in the sixth century).