

However, each country switched over to the new calendar at different times, and they each had different rules for the transition. The second millennium is a bit trickier to calculate since the Julian calendar was replaced by the Gregorian calendar starting in 1582.

the Julian calendar was in use) so the millennium had 365,250 days. After this, each millennium alternates between 365,242 and 365,243 days (as long as the Gregorian calendar remains in use).ĭuring the first millennium, every fourth year was a leap year (i.e. In the fourth millennium, there will be 7 regular centuries and 3 leap centuries, resulting in a total of 365,243 days. Therefore, presuming that the Gregorian calendar will last until the end of the millennium, there will be 365,000 + 242 = 365,242 days in the third millennium. It began on January 1, 2001, and will end on December 31, 2100. The 21st (twenty-first) century is the current century of the Anno Domini era or Common Era, in accordance with the Gregorian calendar. Although numerous popular celebrations marked the start of the year 2000, the 21st century and 3rd millenni Similarly, when did the millennium change? Most experts in calendrical matters will answer that the new millennium begins on the 1st of January in the year 2001, despite the fact that this answer is not the one that most people would like to hear (because, despite what the experts say, they intend to celebrate the new millennium on 1st January 2000). Thus, the 1st millennium is defined as spanning years 1–1000 and the 2nd the years 1001–2000. The Gregorian calendar, put forth in 1582 and subsequently adopted by most countries, did not include a year 0 in the transition from BC (years before Christ) to AD (those since his birth). Look at all these prophesied signs of the times.” And we wonder: When is Christ coming? What will the Millennium be like? Millennium's History Photo KnowInsidersĪs we are bombarded more frequently with devastating hurricanes, fires, earthquakes, shootings, and diseases, many of us can’t help but think, “Boy! We really are living in the last days.
