Millennia:

5th millennium - 6th millennium - 7th millennium

The sixth millennium is a period of time which will begin on January 1, 5001 and will end on December 31, 6000.

Astronomical events

• 5001 September 11: Mercury occults Regulus
• c. 5200 Iota Cephei replaces Gamma Cephei as the North Star, which it has been from around 3000.
• 5366 August 27: Venus occults Aldebaran, the first occultation of Aldebaran by a planet since July 15 18,980 BC
• 5898 August 30: Venus occults Regulus
• 5974 September 25: Mercury occults Regulus

Science predictions

• 5200: Formation of a Type II civilization under the Kardashev scale, according to Kardaschev's extrapolation of 1% energy usage growth per year. ^[1]

Science fiction

• The 51st century is the original timezone of Magnus Greel in the 1977 Doctor Who serial The Talons of Weng-Chiang.

• There are many references to the 51st century in the revived series of Doctor Who. One of the Doctor's companions, Captain Jack Harkness, originates from the 51st century. The events of "The Girl in the Fireplace" partly take place during sometime in the 51st Century, and the two part story "Silence in the Library"/"Forest of the Dead" is set during this period.

• This is also the home time of K-9 Mark I.

• In 5010, Bobby Pendragon, Gunny, and Patrick Mac check future results of Hindenburg crash in the third book of the sci-fi/fantasy Pendragon series, The Never War.

• In 5161 (or, more accurately, CY 10087), the Andromeda Ascendant will be rescued by the crew of the Eureka Maru (for the television series Andromeda).

• In 5700, in the DC Comics universe, the Green Lantern at this point will be Pol Manning (actually an identity taken by Hal Jordan and Salakk).

• In reference to this, according to Amalgam Comics continuity, the Iron Lantern at this point will be Arno Manning, defending a futuristic Coast City.

• The Japanese anime Yat Anshin Uchuu Ryokou takes place in the year 5808.

• Around 5020, the events in Orson Scott Card's books, Speaker for the Dead, Xenocide and Children of the Mind, of the Ender's Game Series take place.

• In the Blake and Mortimer universe, this is the last century of existence for an unnamed world totalitarian government, which originally took over in the late 21st century. In 5060, a worldwide revolution, commanded by Focas, overthrows this regime and presumably builds a better and more just world.

References

• Conjunctions of Regulus and the planets (in German)