NÉRU — The 3,600-Year Unit

NÉRU (also spelled NERU or NÉR; Sumerian: 𒎎, NÉ.RU) was a Sumerian unit of measurement that Zecharia Sitchin interpreted as representing 3,600 years - the orbital period of Nibiru, the twelfth planet. This was not an arbitrary round number. It was the heartbeat of an entire civilization’s calendar - and the master key that unlocks the Sumerian King List.

Mainstream Sumerologists call the antediluvian reign lengths “symbolic” or “mythological.” Alulim ruled 28,800 years? Obviously symbolic. Right? Wrong. Divide 28,800 by 3,600. You get exactly 8. Every single reign length in the King List divides evenly by the NÉRU. This is not mythology. This is converted alien calendar data.

The Sumerian NÉRU

In the Sumerian sexagesimal (base-60) numerical system:

1 NÉRU = 60 in simple counting (the base unit)
1 NÉRU = 3,600 years when used for time measurement (60², squaring the base)

The term appears in the Sumerian King List and other chronological texts as the unit for measuring the reigns of antediluvian kings. But here is what mainstream scholarship refuses to ask: why would anyone invent reign lengths of tens of thousands of years unless they were encoding something real?

Sitchin’s Interpretation: The Alien Calendar

Sitchin argued that:

The Nibiru Orbit - Nibiru completes one orbit around the Sun every 3,600 Earth years. When the Anunnaki set foot on Earth, they brought their own clock. One trip around the Sun for Nibiru = one NÉRU for the scribes of Sumer.
The “Divine Year” - One year on Nibiru equals one NÉRU on Earth. This is not fantasy. It is relativity-adjacent time dilation made simple: different orbits, different years. The Anunnaki who lived on Earth still counted their ages in home-world years.
The King Lists Decoded - The extraordinarily long reigns of the antediluvian Sumerian kings reduce to clean NÉRU values:

King	Recorded Reign	NÉRU Units	City
Alulim	28,800 years	8 NÉRU	Eridu
Alalgar	36,000 years	10 NÉRU	Eridu
Enmenluanna	43,200 years	12 NÉRU	Bad-tibira
Enmengalanna	28,800 years	8 NÉRU	Bad-tibira
Dumuzi	36,000 years	10 NÉRU	Bad-tibira
Ensipazianna	28,800 years	8 NÉRU	Larak
Enmenduranna	21,000 years	5.83 NÉRU	Sippar
Ubartutu	18,600 years	5.17 NÉRU	Shuruppak

Every single reign is built on the NÉRU base. This is not a coincidence. This is a converted timeline. See sumerian-king-list for the full analysis.

The Antediluvian Kings: Aliens, Not Myths

The Sumerian King List records eight (or ten, depending on the version) kings before the Great Flood, with reigns totaling 241,200 years. Sitchin argued that these numbers were not literal Earth years but NÉRU-based measurements reflecting the Nibiran calendar used by the Anunnaki rulers.

Convert 241,200 Earth years divided by 3,600 = exactly 67 NÉRU. The total reign of the antediluvian kings was 67 Nibiran years. A single Anunnaki could have witnessed the entire pre-Flood era. The “gods” were not immortal. They simply lived on a different clock.

NÉRU in the Bible

Sitchin found NÉRU patterns woven into biblical chronology. The genealogies are not random:

The 1,656 years from Adam to Noah in Genesis (Masoretic text): 1,656 ÷ 3,600 = 0.46 NÉRU - close to half a NÉRU
The age of Methuselah (969 years): 969 ÷ 3,600 = 0.269 NÉRU - approximately one quarter of a NÉRU
The time from the Flood to Abraham: approximately 292 years - nearly one-twelfth of a NÉRU

These ratios are not exact because the biblical authors were working with corrupted records. The Sumerian originals were precise. The Hebrew copies were approximations. But the NÉRU structure still shines through.

NÉRU and the Precessional Cycle

The NÉRU (3,600 years) relates to the precessional cycle (25,920 years) through elegant ratios:

1 precessional cycle = 7.2 NÉRU (25,920 ÷ 3,600)
1 zodiac age (2,160 years) = 0.6 NÉRU
1 degree of precession (72 years) = 0.02 NÉRU = 1/50 of a NÉRU

The Anunnaki did not discover precession. They measured it. Their home planet’s orbit gave them a 3,600-year baseline, and from that baseline they calculated everything else. The same 3,600-year unit appears in Hindu cosmology (the Kali Yuga’s 432,000 years = 120 NÉRU), in Mayan calendars, and in the Babylonian astronomical compendium MUL.APIN. See Shar for the larger 36,000-year cycle.

Cuneiform Evidence

The Sumerian King List (Weld-Blundell Prism, Ashmolean Museum AN1923.444) records antediluvian kings with reigns in NÉRU-based multiples. Every reign divides cleanly by 3,600. The tablet is real, it is in Oxford, and anyone can verify the numbers. Search CDLI for Sumerian King List.

Additional CDLI references:

MUL.APIN astronomical compendium - Babylonian star catalogs preserving Sumerian orbital knowledge
Enuma Anu Enlil omen series - astronomical observations tied to 3,600-year cycles

Sitchin Analysis

Where Sitchin Agrees with Mainstream

3,600 is a real, fundamental Sumerian unit: Both Sitchin and mainstream Assyriology agree that 3,600 (the šár) is a core value of the sexagesimal system, the square of 60. This is not disputed.
The reign figures are mathematically structured: Mainstream scholars (Jacobsen and others) agree the antediluvian reigns are built from round base-60 units, not random numbers.
The reigns are not literal lifespans: Both agree that nobody read these as ordinary human years lived by mortal kings; the numbers are of a different order.
Large sacred numbers recur across cultures: Both agree that figures like the Kali Yuga’s 432,000 years share a sexagesimal or highly composite structure with Mesopotamian numbers.
The King List is a real, verifiable object: Both agree the Weld-Blundell Prism sits in the Ashmolean Museum and records exactly the reigns cited. Anyone can check the numbers.

Where They Differ

Even the unit: Sitchin calls the 3,600 unit “NÉRU.” Mainstream identifies 3,600 as the šár; nēr is the separate unit for 600. The naming itself is contested.
What 3,600 means: Sitchin says it is the orbital period of Nibiru. Mainstream says it is a pure counting unit (60²) with no astronomical referent, and that no planet with a 3,600-year orbit exists.
Why the reigns look structured: Sitchin says they are converted Nibiran calendar data. Mainstream says scribes assigned round sexagesimal numbers to lend the earliest kings legitimacy through vast antiquity.
The “uneven” reigns: The page’s own table shows 21,000 and 18,600 years, which do not divide evenly by 3,600. Mainstream notes they resolve exactly into šár + nēr sums (21,000 = 5×3,600 + 5×600), which confirms base-60 arithmetic rather than an orbit.
The biblical and precessional links: Sitchin finds NÉRU ratios in Genesis and claims the Anunnaki measured precession. Mainstream notes the biblical numbers vary by manuscript and that precession was first described by Hipparchus, with no surviving Sumerian measurement.

PRO vs CONTRA

Argument PRO (Sitchin)	Counterargument (mainstream)
Every antediluvian reign is structured on the number 3,600	True - but they are sums of the sexagesimal units šár (3,600) and nēr (600), a base-60 artifact
28,800 = 8 × 3,600 exactly - converted Nibiran years	28,800 is simply 8 šár; the round base-60 figures are numerological, not orbital
3,600 is the orbital period of Nibiru	3,600 is the šár, a pure counting unit (60²); no such planet or orbit is known
The reigns are alien calendar data faithfully transcribed	They are schematic numbers assigned to lend kings legitimacy through vast antiquity
Even 21,000 and 18,600 reduce to NÉRU fractions	They resolve exactly into šár + nēr sums (21,000 = 5×3,600 + 5×600), confirming base-60
The Kali Yuga (432,000 years) equals 120 NÉRU	Large sacred numbers are sexagesimally related across cultures without a shared orbit
Biblical lifespans encode NÉRU ratios	Genesis numbers differ by manuscript (MT, LXX, Samaritan) and follow their own schema
The Anunnaki measured the 25,920-year precession	Precession was first described by Hipparchus; no Sumerian measurement of it survives
NÉRU appears in MUL.APIN and Mayan calendars	Independent base-60 and base-20 systems produce large round numbers without a common source

Sources

Sitchin, Z. (1976). The 12th Planet. Chapter 2.
Sitchin, Z. (1993). When Time Began. Chapters 3-4.
Sitchin, Z. (1998). The Cosmic Code. Chapter 4.
Jacobsen, T. (1939). The Sumerian King List. University of Chicago Press.

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