4th millennium

Millennia:	3rd millennium 4th millennium 5th millennium
Centuries:	31st century 32nd century 33rd century 34th century 35th century 36th century 37th century 38th century 39th century 40th century

The fourth millennium of the Gregorian calendar will begin on January 1, 3001, and end on December 31, 4000. It will be the fourth millennium in the Anno Domini or Common Era.

Predicted/scheduled events

Global sea levels could rise by between 2.1 and 6.8 metres (7 and 22 ft) by the 4th millennium due to manmade global warming.^[1]
3015: A camera placed by Jonathon Keats will finish its exposure time after its placement at the ASU Art Museum in Tempe, Arizona, in 2015.^[2]
3117: Minimum time by which, according to physicist Andrew Kennedy, humanity can expect to have reached Barnard's Star, assuming an annual economic growth rate (and corresponding increase in power output) of 1.4% from 2007.^[3]
3183: The time pyramid, a public art work at Wemding, Germany, is scheduled for completion.^[4]

c.3000: due to the precession of the equinoxes, γ Cephei will become the northern pole star until c.5200 when this will be ι Cephei.
December 18, 3089: First transit of Venus which is not part of a pair since November 23, 1396.
December 20, 3332: transit of Venus.
3412: Expected return of Comet McNaught–Russell.
3711/12: multi-triple conjunction between Jupiter, Saturn, Uranus and Neptune.
The expected return of Comet Donati.

Millennia
CE / AD	1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th and beyond
BCE / BC	200th and prior 200th to 11th 10th 9th 8th 7th 6th 5th 4th 3rd 2nd 1st

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