Again I didn't find it (it's getting kind of frustrating that no one thought it a good thing to write down how they came to that date in their almanacs), but found this instead:
Het zevengestarnte, een van de heerlijkste
des zuidelijken hemels, stelde bij de Oosterlingen NOACH's arke voor.
The Pleiades, one of the loveliest (constellations) of the southern skies, stood for Noah's Ark among the easterners.
OK, and from then on:
The Babylonian star catalogues name them MUL.MUL or "star of stars", and they head the list of stars along the ecliptic, reflecting the fact that they were close to the point of vernal equinox around the 23rd century BC. The earliest known depiction of the Pleiades is likely a bronze age artifact known as the Nebra sky disk, dated to approximately 1600 BC.
The precise dating of the Nebra skydisk depended upon the dating of a number of Bronze Age weapons, which were offered for sale with the disk and said to be from the same site. These axes and swords can be typologically dated to the mid 2nd millennium BC (Unetice culture). Radiocarbon dating of a birchbark particle found on one of the swords to between 1600 and 1560 BC confirmed this estimate. This corresponds to the date of burial, at which time the disk had likely been in existence for several generations.
This Nebra skydisk is an interesting artefact and of a nice age...
THE BIBLE AND THE PLEIADES
Gerardus D. Bouw, Ph.D.
From time immemorial the Hebrews and the Christian Church
have linked the constellations to the truths of scriptures. The
Hebrews, for example, maintain that the constellation of Orion the
hunter, which they call Kesil, (meaning fool), was usurped by Nimrod
(Gen. 10:8-9) to immortalize himself in the sky. Indeed, most of the
pagan accounts of the Pleiades even have Biblical overtones. Thus
many ancients associate Taurus, the constellation in which the
Pleiades is found, with the flood of Noah, and they associate the
Pleiades with the ark. Related to that, some regard the Pleiades as
doves. Of course, we know Noah sent a single dove from the ark
(Gen. 8:8), not seven, but the connection is there nevertheless.
(..) day, and the Pleiades with the rain or start of the
rainy season, a theme associated with them around the world.
We find that tales of a missing Pleiad are world-wide.
The pervasiveness of the Pleiades as the spiritual center or seat of
the universe led Wright, in 1750, to propose that the Pleiades are at
the physical center of the universe. In 1846 this led to the suggestion
by Maedler that the whole universe revolved around Alcyone.
Here someone is quoting an interpretation by Velikovsky and I will try to find the original text interpreted by Velikovsky:
The Pleiades are called the Khima (or heap) in the Old Testament. Their connection to the story of Noah and the Biblical Great Flood first appears in the set of Jewish scriptures known as the Babylonian Talmud, or Tracta Berakhot. “When the Holy One decided to bring the Deluge on the Earth, He took two stars from Khima and (hurling them against the Earth) brought the Deluge on the Earth.”
A site about Velikovsky (and the quote): http://www.varchive.org/itb/khima.htm
(Did Alewyn mention this in his book? I am not sure, and I can't find it in his book.)
They shared the watery character always ascribed to the Hyades, as is shown in Statius' Pliadum nivosum sidus; and Valerius Flaccus distinctly used the word "Pliada" for the showers, as perhaps did Statius in his Pliada movere; while Josephus states, among his very few stellar allusions, that during the investment of Jerusalem by Antiochus Epiphanes, 170 B.C., the besieged suffered from want of water, but were finally relieved "by a large shower of rain which fell at the setting of the Pleiades." In the same way they are intimately connected with traditions of the Flood found among so many and widely separated nations, and especially in the Deluge-myth of Chaldaea.
A nice read (well, for those who are called Puzzler and Abramelin, lol):
Mazzaroth; or The Constellations/
Frances Rolleston 1862
For centuries one has calculated the creation of the earth and the big flood with help of the numbers of years e.g. duration of reigns given in the Bible. s. http://www.statenver...?q=jaar&x=0&y=0. The case of Methusalem shows, that those calculations could not be realistic.