Editing 6th millennium BC (section)

==Astronomy and calendars==
[[Image:Monreale creation Adam.jpg|right|thumb|upright|Mosaic of Creation of [[Adam]] from [[Monreale Cathedral]] - dated year 1 [[Anno Mundi|A.M.]] (September 5509 BC) in the Byzantine calendar.]]
The [[Epoch (reference date)|epoch]] of the [[Byzantine calendar]], used in the [[Byzantine Empire]] and many Christian Orthodox countries, is equivalent to 1 September 5509 BC on the [[Julian proleptic calendar]] (see image).<ref>Stephenson, Paul. ''"Translations from Byzantine Sources: The Imperial Centuries, c.700–1204: [http://www.paulstephenson.info/trans/scyl2.html John Skylitzes, "Synopsis Historion"'': ''The Year 6508, in the 13th Indiction: the Byzantine dating system]"''. November 2006.</ref>

The 6th millennium BC falls entirely within the [[Astrological Age]] of [[Gemini (astrology)|Gemini]] (c. 6450 BC to c. 4300 BC) according to some astrologers.<ref>{{cite web |url=http://www.yeatsvision.com/GreatYear.html |title=The Astrological Great Year |author=Mann, Neil |date=24 May 2007 |access-date=1 June 2019}}</ref>

According to [[Gregory of Tours]] God created the world 5597 years prior to the death of [[Martin of Tours]], which would be 5200 BC. <ref>Gregory of Tours (1916) [594], ''History of the Franks'', Pantianos Classics, 1916</ref>