Two sons were born to Eber: One was named Peleg, because in his days the earth was divided, and his brother was named Joktan.
Peleg stands at a turning point in the biblical story. The earth is divided in his days; the nations spread abroad; and the genealogy continues through his family toward Abraham, through whom those nations are to receive blessing. His name gives a short genealogical notice a much wider significance.
The chronology develops this theme in two ways. The ordinary genealogy places Peleg among people whose lives overlap: Noah, Shem, Arphaxad, and the generations after the Flood. The cumulative method places complete lifespans end to end, revealing a different set of relationships between Peleg, Moses, the Conquest, and the nations. Each method has its own purpose, and the distinction matters throughout this study.
For a shorter route through the central argument, begin with Peleg and Babel: Division, the Nations, and Restoration. The present detailed companion supplies the derivations, the complete seasonal Mirror comparison, and further connections that can be read alongside it.
Go directly to: Peleg’s biblical date · The cumulative method · Three textual traditions · The 4900-year Mirror · Flood and Peleg · Peleg and Levi · Jubilees · Supporting tables.
1. Peleg’s birth as the Babel marker
I use Peleg’s birth in 2357 BC as the chronological marker for the division at Babel. His birth and death provide the boundaries of his life, and his name is explicitly associated with division. Genesis 10:25 places the event “in his days”; it does not give his age when work on the tower began or when the people were scattered. The birth marker makes the chronological comparison possible while preserving the broader wording of the text.
The normal Masoretic Text (MT) framework used here has Nisan reckoning, 430 years in Egypt, no additional Terah +60 adjustment, and no restored second Cainan. Its ordinary anchors include Creation at 4114 BC, the Flood at 2458 BC, and Abraham’s birth at 2166 BC. Peleg’s dates are 2357–2118 BC, a lifespan of 239 years.
The derivation is short. Arphaxad is born in 2456 BC, two years after the normal Flood date. The next father-to-son intervals are 35, 30, and 34 years:
2456 − 35 − 30 − 34 = 2357 BC.
Arphaxad is therefore 99 when Peleg is born. Peleg himself is 30 when Reu is born and lives another 209 years: 30 + 209 = 239, ending in 2118 BC. These figures come from Genesis 11:10–19; the birth-by-birth table gives every step.
The people surrounding Peleg help orient the reader. With Noah’s normal Gear-2 birth at 3058 BC, Noah is 701 at Peleg’s birth; the commonly used Gear-1 birth at 3056 BC gives 699. Shem’s two corresponding death positions, 1958/1956 BC, fall 399/401 years after Peleg’s birth. Thus “about 700 years into Noah’s life” and “about 400 years before Shem’s death” are useful summaries, each with a one-year difference on either side. These Noah/Shem alternatives leave Arphaxad at 2456 BC and Peleg at 2357 BC.
There is also a meaningful age correspondence. Arphaxad’s 99 years at Peleg’s birth can be set beside Abraham’s 99 years at the covenant of circumcision and the Sodom episode, placed in 2067 BC in the normal chronology (Genesis 17:1; Genesis 18). The two event markers are 290 years apart: 2357 − 2067 = 290. In the separately labelled Terah +60 state, Peleg moves to 2417 BC, giving 350 years to the same Abrahamic target. The normal 2357 BC position remains the starting point of this article.
Two patriarchs at the age of 99
Arphaxad’s 99 years come from 35 + 30 + 34 in Genesis 11.
Peleg’s birth is the adopted Babel marker; Genesis 10:25 says “in his days.” Positions are schematic.
Show image version
2. What cumulative chronology measures
Ordinary chronology asks how many years pass between one generation’s birth and the next. Cumulative chronology adds the whole lifespan of each person on the chosen ancestral line. The resulting coordinates display the sum; they do not claim that the people lived successively without overlap.
From Peleg through Moses, the MT line contains twelve lives:
Peleg → Reu → Serug → Nahor → Terah → Abraham → Isaac → Jacob → Levi → Kohath → Amram → Moses.
Their full lifespans total 2090 years. The terminal boundary is Moses’ death and the Conquest in 1406 BC, so counting backward gives:
1406 + 2090 = 3496 BC.
That is Peleg’s primary cumulative MT position. His 239-year segment runs from 3496 to 3257 BC. His ordinary life remains 2357–2118 BC. The two pairs answer different questions and should be read under their respective headings.
The complete twelve-lifespan table makes the calculation reproducible. Joseph is not inserted into the line after Jacob; the ancestry continues through Levi, Kohath, Amram, and Moses. The Exodus in 1446 BC is an important comparison point, but the end of the full Moses lifespan is 1406 BC.
The companion explanation, Cumulative Biblical Chronology: Adding the Lifespans, introduces this method from Adam onward. Here the shorter Peleg-to-Moses section is sufficient to establish the principal coordinate.
3. Why MT, SP, and LXX place cumulative Peleg differently
The Samaritan Pentateuch (SP) and Septuagint (LXX) supply useful comparisons because their lifespan totals differ at identifiable points. Keeping the same intermediate Moses/Conquest boundary, the three primary positions are:
Swipe or scroll the table to see all columns.
| Tradition | Peleg’s lifespan | Peleg through Moses | Cumulative Peleg, BC |
|---|---|---|---|
| MT | 239 | 2090 | 3496 |
| SP | 239 | 2030 | 3436 |
| LXX | 339 | 2450 | 3856 |
The common portion from Abraham through Moses totals 1029 years. Most of the difference therefore lies in the five lives from Peleg through Terah. SP has Terah’s 145 years, compared with 205 in MT: a difference of 60. LXX has 339, 339, and 330 for Peleg, Reu, and Serug, each 100 above the corresponding MT lifespan; its Nahor lives 208, another 60 above MT’s 148. Together those differences give 360.
Consequently:
3856 − 3496 = 360; 3496 − 3436 = 60; 3856 − 3436 = 420.
These are differences between accumulated lifespans. The 60-year MT–SP difference here is not an instruction to apply the optional regular Terah +60 adjustment. The three-column lifespan table shows exactly which data produce each result.
Three totals along the same ancestral line
MT
- Peleg
- 239
- Reu
- 239
- Serug
- 230
- Nahor
- 148
- Terah
- 205
- 1029
Abraham through Moses
Peleg: 3496 BC
SP
- Peleg
- 239
- Reu
- 239
- Serug
- 230
- Nahor
- 148
- Terah
- 145
- 1029
Abraham through Moses
Peleg: 3436 BC
LXX
- Peleg
- 339
- Reu
- 339
- Serug
- 330
- Nahor
- 208
- Terah
- 205
- 1029
Abraham through Moses
Peleg: 3856 BC
LXX → SP: 420 years.
SP: 1296 + Joshua’s 110 + 2030 = 3436 BC. The intermediate 1406 BC Moses/Conquest boundary is common to these comparisons.
Show image version
One terminal detail deserves attention. The canonical SP table continues through Joshua’s 110-year segment and ends at his death in 1296 BC. The 1406 BC Moses/Conquest boundary is already present within it. Thus 1296 + 110 + 2030 = 3436 reaches the same Peleg position without changing the SP table’s terminal event.
The corresponding spans to Moses’ birth in 1526 BC are 1970 years (MT), 1910 (SP), and 2330 (LXX). Adding Moses’ 120 years returns the three totals above. See the birth, Exodus, and Conquest checks for these related endpoints.
4. Nations, inheritance, and the measure of a Jubilee
The theme connecting Babel and the Conquest is the division of the earth or land. At Babel, people are scattered; in Joshua, the land is allotted as an inheritance. This makes the Jubilee measure especially relevant, since Leviticus 25:8–13 joins seven sevens of years with liberty and the return of property.
The counting unit is 7 × 7 = 49 years. Leviticus also explicitly calls for the proclamation of the fiftieth year. In the calculations here, “50 Jubilees” means fifty repetitions of the 49-year measure; the numerical convention does not erase the text’s fiftieth-year language.
Three relationships bring that measure into the Peleg study:
Swipe or scroll the table to see all columns.
| Comparison | Years | Form in 49-year units |
|---|---|---|
| LXX cumulative Peleg 3856 BC → Conquest 1406 BC | 2450 | 50 × 49 |
| SP cumulative Peleg 3436 BC → Christ anchor 6 BC | 3430 | 70 × 49 |
| MT cumulative Peleg envelope → paired Conquest Mirror | 4900 | 100 × 49 = 70 × 70 |
The 6 BC endpoint is the chronology’s birth-of-Christ anchor. The first two rows use ordinary subtraction between BC labels. The third uses the civil BC–AD calculation explained below. Their different operations remain visible even though the spans share the 49-year measure.
The 70 in the final factorization also recalls the traditional MT count of the Table of Nations. Genesis 10 gives the genealogical list rather than printing a total of 70; that conventional count is the one used here. Other textual and counting traditions should not be silently substituted for it.
Numerically, 2450 is half of 4900. This is a relation between the displayed spans, not a claim that a single timeline has acquired an otherwise unspecified midpoint. Their significance comes from the named people, events, and chronological states attached to them.
5. The complete 4900-year Mirror comparison
Peleg’s 3496 BC primary cumulative position sits within a larger, source-defined starting envelope. The Nisan envelope is 3501–3494 BC; its parallel Tishri envelope is 3502–3495 BC. These are spring and autumn components of the cumulative construction, not seven years assigned to the physical building of Babel.
The corresponding Conquest-to-rest envelope is 1406–1399 BC in Nisan, with autumn counterparts 1407–1400 BC. The paired seasonal Mirror in File 09, read with the Peleg clarification in File 18, reflects these boundary pairs:
Swipe or scroll the table to see all columns.
| BC boundary pair | AD Mirror pair |
|---|---|
| Conquest: 1407t / 1406n | AD 1406t / 1407n |
| Land-rest boundary: 1400t / 1399n | AD 1399t / 1400n |
Here n means Nisan/spring and t means Tishri/autumn. Reflection reverses the order of the source boundaries. The reflected period therefore reads AD 1399t/1400n → AD 1406t/1407n.
Civil BC–AD intervals have no year zero. With the seasonal phase matched at both ends, the calculation is BC + AD − 1. All four Peleg-to-Mirror component checks give 4900:
Four matched components, each 4900 years
Paired Mirror: AD 1400–1407 (Nisan); AD 1399–1406 (Tishri).
Nisan · spring
Nisan · spring
Tishri · autumn
Tishri · autumn
No civil year zero. Same seasonal phase at both ends.
AD nodes are reflected coordinates. Card spacing is schematic.
Show image version
For example, 3495t BC → AD 1406t gives 3495 + 1406 − 1 = 4900. This is the particular component highlighted in File 22 §1.4. The later File 18 clarification identifies 3495t as the terminal member of Peleg’s Tishri envelope and supplies the complete set of pairings. The four-row calculation table preserves all of them.
The result is 4900 = 70 × 70 = 100 × 49. Within this reading, the division associated with the nations is placed beside the reflected inheritance-and-rest envelope of the Conquest. The arithmetic supplies the correspondence; the association of nations, land, and restoration supplies its theological meaning.
These AD positions are reflected coordinates, not forecasts of another historical Conquest. This is the actual cumulative, phase-resolved Mirror. Rounded displays and reversal of the digits in a number belong to other procedures and are not used here.
6. Peleg within the Flood-to-Conquest structure
The same cumulative table gives another compact comparison. On the primary MT Moses/Nisan line, Arphaxad begins at 4831 BC, the coordinate shared with the table’s Flood marker. His full 438 years, followed by Shelah’s 433 and Eber’s 464, lead to Peleg:
438 + 433 + 464 = 1335; 4831 − 1335 = 3496 BC.
The 1335 is therefore the sum of three identified lifespans. It invites comparison with the 1335 days of Daniel 12:12, but the biblical days and these cumulative years remain different measures. Their numerical correspondence is an interpretive parallel, not a statement that Daniel explicitly dates Peleg.
This calculation uses 4831, the primary coordinate. The full MT Flood/Arphaxad envelope is 4836–4829 BC. Its matching endpoints stand 3430 years before the Conquest/rest envelope 1406–1399 BC:
4836 − 1406 = 4829 − 1399 = 3430 = 70 × 49.
That is the same span as SP cumulative Peleg 3436 BC → 6 BC. The parallel connects two clearly identified comparisons without merging their starting events or textual traditions.
The 3430-year measure in two settings
The two MT rows preserve corresponding envelope members. The SP row uses its primary cumulative Peleg position. All intervals are BC subtractions; no Mirror is used.
Show image version
The primary point and the envelope must be used consistently. 4831 − 3496 = 1335; substituting the envelope’s 4836 opening while retaining 3496 would give 1340. Alternatively, corresponding opening members 4836 − 3501 preserve 1335. The span is carried by a matched pair, not by freely choosing a convenient member at each end.
7. Peleg’s death and Levi’s midpoint
Returning to ordinary MT chronology, Peleg’s death in 2118 BC stands 672 years before the Exodus in 1446 BC. Levi’s death in 1782 BC divides that interval exactly:
2118 − 1782 = 336; 1782 − 1446 = 336.
Levi divides the 672 years into equal halves
Each 336 = 48 × 7.
2118 BC is Peleg’s actual regular death. Rounded 2116 BC belongs to a different calculation. The nodes are schematic; the two labelled spans are equal.
Show image version
File 60 §3.4 gives the regular Levi-to-Exodus 336-year relationship. Placing File 18’s normal Peleg death before it reveals the matching first half. Each 336 = 48 × 7 also corresponds numerically to the 336-day priestly service-year model discussed in the Levi studies. The comparison is between years and a calendrical pattern; it does not turn an ordinary year into a 336-day historical year.
This is an example of Peleg’s dividing theme that needs no Mirror or cumulative total. It also gives his death a role alongside his birth. The earlier Peleg and the Division of the Earth develops the approximate lifespan-halving framework and the Rounded birth/death pivots. The present 2118 BC death is the actual regular coordinate; it should not be replaced by Rounded 2116 BC within this calculation.
8. What the Book of Jubilees contributes
The Book of Jubilees (BJ) is valuable as a separate ancient treatment of genealogies, the division of the earth, and inheritance. Its account should be read in its own sequence.
Jubilees 8:8–11, in R. H. Charles’s 1913 translation, connects Peleg’s birth with the beginning of land division among Noah’s descendants. It then describes Noah’s formal allotment of the earth to his sons. The stated jubilee/week/year positions give AM 1567 for Peleg’s birth and AM 1569 for the formal division. These labels are two years apart. AM, Anno Mundi, numbers years from Creation.
Jubilees 10:18–27 subsequently describes Babel’s construction, confusion of languages, and dispersion. It explicitly assigns 43 years to building the tower. The division of land around Peleg’s birth and this tower account are therefore distinguishable episodes in BJ’s telling.
Jubilees distinguishes the land division and the tower
AM means a year numbered from Creation. The tower card gives a duration, not an absolute year or Peleg’s age. The connector to it shows narrative sequence, not a measured interval.
Show image version
The construction span is clear in the checked translation; Peleg’s precise age at its endpoints requires a separate reconstruction. The printed chronological annotations and the literal jubilee ordinals also need to be distinguished. Neither supplies a reason to move this study’s MT Babel marker from Peleg’s birth in 2357 BC.
BJ makes a second contribution at a larger scale. Its repository Creation anchor is 3856 BC, which coincides numerically with LXX cumulative Peleg. Both stand 2450 = 50 × 49 years before the 1406 BC Conquest. They occupy the same numerical position while representing different things: Creation in BJ and the beginning of Peleg’s lifespan segment in cumulative LXX.
File 20 §7A.8 and File 53 distinguish this Creation-to-Conquest comparison from BJ Fall 3849 BC → land rest 1399 BC, another 2450-year interval. The two pairs move together by seven years. They should remain labelled as two coordinated relationships, rather than exchanging “Creation,” “Fall,” “Conquest,” and “rest” as if the words were interchangeable.
For reading BJ’s dates, the repository conversion is BC = 3856 − (AM − 1). Thus AM 1569 means 1568 elapsed years from AM 1 and gives 2288 BC in that BJ framework. This is a conversion within BJ, not a competing normal-MT date for Babel.
9. From division to blessing
The Jared tradition adds the related theme of descent. Jubilees 4:15 associates Jared’s days with the descent of the Watchers. Jubilees 10:22–23 gives angels a part in the descent at Babel. Genesis 11:5–9 itself describes the LORD’s descent and the scattering. The fuller angelic account belongs to Jubilees; it should not be placed into Genesis as though Genesis named those figures.
The comparison is suggestive: descent and division mark disruptions of human life, followed by judgment and a renewed setting for covenant. Yet the biblical direction of the Babel story becomes clearest in what follows it. Genesis 12:1–3 moves toward Abraham and the blessing of all the families of the earth. The genealogy through Peleg is the route from the divided nations to that promise.
At Pentecost, Acts 2:5–11 describes hearers from many lands recognizing the message in their own languages. The many languages do not disappear; understanding crosses their divisions. This gives the Babel–Pentecost comparison its force: the scattered peoples can hear one proclamation of God’s works.
The Feast of Weeks supplies an appropriate numerical setting. Leviticus 23:15–16 counts seven full weeks and then the fiftieth day. Its 49-day count stands alongside the 49-year Jubilee measure without confusing the units. The calendars give a language of completed sevens; the narratives give that language its human meaning—release, inheritance, blessing, and restored fellowship.
Peleg’s importance is consequently broader than a single striking number. His ordinary dates place division within the generations after the Flood. His cumulative position participates in the Jubilee comparisons and the 70 × 70 Mirror. His death reaches the Exodus through equal spans on either side of Levi’s death. Read together, these relationships develop a consistent movement from division toward inheritance and restoration, while leaving each calculation attached to its own source and method.
Supporting tables and coordinate notes
A. Regular MT derivation
Swipe or scroll the table to see all columns.
| Step | Calculation | Result, BC |
|---|---|---|
| Normal Flood → Arphaxad | 2458 − 2 | 2456 |
| Arphaxad → Shelah | 2456 − 35 | 2421 |
| Shelah → Eber | 2421 − 30 | 2391 |
| Eber → Peleg | 2391 − 34 | 2357 |
| Peleg → Reu | 2357 − 30 | 2327 |
| Peleg’s death | 2327 − 209 = 2357 − 239 | 2118 |
File 18 §2.2 prints the minimum-sojourn Peleg row as 2142–1903 BC. Adding 215 to those two labels restores the normal full-430-Egypt setting: 2357–2118 BC. This source-table conversion is distinct from the optional Terah +60 variant. Arphaxad-to-Peleg is 99; Flood-to-Peleg is 101.
Return to the regular explanation.
B. The full cumulative lifespan comparison
Swipe or scroll the table to see all columns.
| Person | MT years | SP years | LXX years | Primary MT segment, BC |
|---|---|---|---|---|
| Peleg | 239 | 239 | 339 | 3496 → 3257 |
| Reu | 239 | 239 | 339 | 3257 → 3018 |
| Serug | 230 | 230 | 330 | 3018 → 2788 |
| Nahor | 148 | 148 | 208 | 2788 → 2640 |
| Terah | 205 | 145 | 205 | 2640 → 2435 |
| Abraham | 175 | 175 | 175 | 2435 → 2260 |
| Isaac | 180 | 180 | 180 | 2260 → 2080 |
| Jacob | 147 | 147 | 147 | 2080 → 1933 |
| Levi | 137 | 137 | 137 | 1933 → 1796 |
| Kohath | 133 | 133 | 133 | 1796 → 1663 |
| Amram | 137 | 137 | 137 | 1663 → 1526 |
| Moses | 120 | 120 | 120 | 1526 → 1406 |
| Total | 2090 | 2030 | 2450 | 3496 → 1406 |
Sources: File 18 §§3.2, 4.2–4.3, 6A, 6C, and 6D. The SP/LXX lifespan columns expand the selected cumulative rows using the post-Flood lifespan tables and the common Abraham-to-Moses line. The MT segment column follows §6A. The LXX second Cainan precedes Peleg and does not enter this twelve-name segment. LXX Peleg/Reu/Serug use the corrected 339/339/330, retaining their distinction from MT/SP 239/239/230.
Return to the cumulative method · Return to the three traditions.
C. Different targets give different spans
Swipe or scroll the table to see all columns.
| Starting position, BC | To Moses’ birth, 1526 BC | To Exodus, 1446 BC | To Conquest, 1406 BC |
|---|---|---|---|
| MT cumulative Peleg, 3496 | 1970 | 2050 | 2090 |
| SP cumulative Peleg, 3436 | 1910 | 1990 | 2030 |
| LXX cumulative Peleg, 3856 | 2330 | 2410 | 2450 |
Each row adds Moses’ 80 years from birth to Exodus and then the 40-year wilderness interval. It is the full 120 years that completes the lifespan sum at 1406 BC.
D. Primary point, branch, and envelope
Swipe or scroll the table to see all columns.
| MT Peleg display | Value, BC | Role |
|---|---|---|
| Primary Moses/Nisan | 3496 | Beginning of the 239-year cumulative segment |
| Whole-year Aaron/Moses pair | 3499 / 3496 | Integer branch display |
| Exact Aaron/Tishri coordinate | 3499.5 | Phase-resolved partner, 3.5 years before the primary point |
| Nisan starting envelope | 3501n–3494n | Seven-year cumulative envelope |
| Parallel Tishri envelope | 3502t–3495t | Autumn components used in the Mirror |
The whole-year pair and the exact phase coordinate are different displays; 3499 − 3496 is 3, while 3499.5 − 3496 is 3.5. The envelope is different again. Its primary 3496 point is not its arithmetic midpoint, and the envelope does not change Peleg’s 239-year lifespan.
The Aaron/Moses foundation is explained in the cumulative chronology appendix. File 22’s local discussion of a 7 → 3.5 resolution around Peleg should not be used to erase the continued seven-year envelopes explicitly printed in File 18. The Mirror comparison here uses the full Peleg envelope specified in that table and its amendment.
E. All four Mirror components
Swipe or scroll the table to see all columns.
| Peleg boundary, BC | Matched reflected boundary, AD | Civil calculation | Years |
|---|---|---|---|
| 3501n | 1400n | 3501 + 1400 − 1 | 4900 |
| 3494n | 1407n | 3494 + 1407 − 1 | 4900 |
| 3502t | 1399t | 3502 + 1399 − 1 | 4900 |
| 3495t | 1406t | 3495 + 1406 − 1 | 4900 |
This is the paired seasonal construction. Replacing an individual component with the reflection of an isolated, unsuffixed year would change the state being compared. Same-season component spans use the civil formula without a further half-year adjustment.
Return to the Mirror explanation.
Sources and further reading
The Unified Chronology Markdown collection supplies the controlling tables and amendments. The following sections are the closest routes to the calculations in this study:
Swipe or scroll the table to see all columns.
| Subject | Source |
|---|---|
| Ordinary Peleg, cumulative lifespan tables, and Peleg’s amended Mirror envelope | File 18, §§2.2, 6A, 6C, 6D, and author clarification note 8 |
| Aaron/Moses foundation and paired seasonal Mirror | File 09, §3 and phase-pair controls |
| Peleg and 4900 = 70 × 70 | File 22, §1.4, read with File 18’s amendment |
| Jubilees’ status, AM conversion, and Creation-to-Conquest span | File 20, §§1, 7A.8, and 9–10; File 53, companion-trunk controls |
| Traditional Table-of-Nations counts | File 59, Appendix G.3 |
| Levi’s normal death and 336 years to Exodus | File 60, §§3.4–3.5 |
| Daniel’s 1335-day comparison | File 17, §12.4 |
| Approximate lifespan halving around Peleg | File 23, §5 |
For a compact illustrated presentation, return to Peleg and Babel: Division, the Nations, and Restoration. Its technical appendix gives a shorter set of supporting tables. The Shem and Flood comparison develops related Rounded patterns under its own stated conventions.
Download the image index (CSV) · Download the source crosswalk (CSV) · Download the exact HTML, CSS, JSON and PNG source bundle (ZIP). The CSV files retain the original package-relative paths; the ZIP preserves that local file layout.
Scripture quotations: Berean Standard Bible (BSB), public domain.