What millennium are we in now? In contemporary history, the third millennium of the anno Domini or Common Era in the Gregorian calendar is the current millennium spanning the years 2001 to 3000 (21st to 30th centuries).
What is 100000000 years called? A million years is called a megaannum, which is often abbreviated ‘Ma.
What was before 2000 years?
Division of Time.
|AD 1701-1800||18th century AD||2nd millennium AD|
|AD 1801-1900||19th century AD|
|AD 1901-2000||20th century AD|
|AD 2001-present day||21st century AD||3rd millennium AD|
Why is 2000 not the 21st century? We live in the 21st Century, that is, the 2000s. Similarly when we say “20th Century,” we are referring to the 1900s. All this because, according to the calendar we use, the 1st Century included the years 1-100 (there was no year zero), and the 2nd Century, the years 101-200.