Year 2 (AD 2)

Calendars and weekdays

In the Julian calendar, the year 2 is classified as a common year that began on Sunday. When projected onto the modern, proleptic Gregorian calendar, that same year is calculated to have begun on Tuesday. The distinction reflects adjustments made by the Gregorian reform to better align the civil year with the solar year; historians therefore often note both reckonings when discussing early AD dates.

Roman dating and government

Romans of the period typically named years for the two serving consuls. Year 2 was known as the "Year of the Consulship of Vinicius and Varus" in surviving records. This eponymous system was practical for documents and inscriptions and remained common until imperial titulature and regnal years became more prominent.

Historical context

Politically and culturally, year 2 fell within the long principate of Augustus, a period of consolidation following the Republic's final civil wars. While few precisely dated events survive for every year of this era, the early first century was marked by administrative reforms, building programs in Rome and the provinces, and continued development of imperial institutions.

Chronological conventions and later usage

• Contemporary sources used consul names, regnal years, or local eras rather than "AD"; the Anno Domini system became widespread in medieval Europe.
• Modern historians sometimes use the term "proleptic Gregorian" to indicate Gregorian weekday or date assignments applied backward before the reform; see the distinction between Julian calendar reckoning and the Gregorian calendar.
• References to the year 2 in modern works may appear with different starting weekdays depending on which calendar projection is chosen; such differences are technical rather than substantive.

For general study, the year 2 is best approached as part of the early Augustan era: a moment in which Roman institutions and imperial practice were taking shape, and in which later chronological systems would retroactively place the second year of the new era. See further entries on Roman consuls, the Julian calendar, and the development of the Anno Domini system for more detail (common year, 1st century).