Shoreshthe drift report · all case files
Case file

Chronology of the Bible

Wikipedia's first sentence called it “elaborate system of genealogies”. Today it says “elaborate system of lifespans”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
We saved snapshots of this article over twenty years; you are reading the 2020 one. Red dashes: removed from Wikipedia since. Pale dots: rewritten; the numbered note shows what it says now. 1 tap a number or a side note to jump between them
The opening as it read in 2020

This article deals with the chronology of the Hebrew Bible (or Christian Old Testament ). Creation of Adam (Michelangelo) Sistine Chapel The chronology of the Bible is an elaborate system of lifespans, ' generations ', and other means by which the passage of events is measured, beginning with the Genesis creation narrative .1 A widespread scholarly understanding is that this marks out a world cycle ( Great Year ) of 4,000 years, ending, presumably, around 164 BCE (the year of the re-dedication of the Second Temple ).2 It was theological in intent, not historical in the modern sense. It also functions as an implied prophecy , whose key lies in the identification of the final event. The passage of time is measured initially by adding the ages of the Patriarchs at the birth of their firstborn sons , later through express statements, and later still by the synchronised reigns of the kings of Israel and Judah . The chronology is highly schematic . The Exodus takes place in the year Anno Mundi 2666, exactly two thirds of the way through the four thousand years.3 Solomon's Temple is commenced 480 years, or 12 generations of 40 years each, after that.4 And 430 years pass between the building of Solomon's Temple and its destruction during the Siege of Jerusalem . The 50 years between the destruction of the Temple and the " Decree of Cyrus " and end of the Babylonian Exile , added to the 430 years for which the Temple stood, produces another symmetrical period of 480 years. The 374 years between the re-dedication of the Second Temple by the Maccabees and the Edict of Cyrus complete the 4,000 year cycle.5 As recently as the 17th–18th century, the Archbishop of Armagh James Ussher (term 1625-1656), and scholars of the stature of Isaac Newton (1642-1727) believed that dating creation was knowable from the Bible. Today, the Genesis creation narrative has long since vanished from serious cosmology , the Patriarchs and the Exodus are no longer included in most serious histories of ancient Israel , and it is almost universally accepted that the Book of Joshua and the Book of Judges have little historical value.6 The History of Ancient Israel: A Guide for the Perplexed . More significantly, the Exodus occurs at a point (2666) that is two-thirds of 4,000. By adding the remaining 375 years we arrive—in our modern calculations—at 538 - 375 = 163 BCE, the date of the rededication of the temple by Judas Maccabee. Of course, this calculation implies that the framers of the chronology were aware of the accurate figure. So possibly the endpoint is the year of desecration (167), or even a date a little in the future, the date of the expected eschaton ... If so, the present Masoretic chronology dates from the second century BCE. Noteworthy, finally, is the hypothesis according to which the overall biblical chronology is based on a 4000-year cycle of Zoroastrian inspiration, a 'Great Year,' inserted into the biblical narrative calculating backwards from the same point in time, namely, the purification of the temple and the restoration of the temple cult in 164 BCE. The Oxford Companion to the Bible . If, as is possible, the Exodus took place in 2666 AM, is it perhaps significant that this is almost exactly two-thirds of 4000? ... If, as has been suggested, a figure of 4000 was held in mind, the present biblical chronology might be predicated upon the rededication of the Temple (about 164 BCE) after its profanation by Antiochus, which would establish a connection with Daniel, as well as with the books of Enoch and Jubilees.7

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 965252831.
Today
Wikipedia's first sentence called it “elaborate system of genealogies”. Today it says “elaborate system of lifespans”. Read the current article and compare.
201020152020Oct '232025
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.

What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2010, and today's defining sentence is their current revision.

Then

elaborate system of genealogies

Now

elaborate system of lifespans

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

← back to the drift report