Biblical chronology · Calendars · Comparative texts
The 490d Unified Chronology
Exploring the numerical grammar that connects biblical timelines.
A Christian research archive built on forty years of systematic study. Compare the Masoretic Text (MT), Septuagint (LXX), and Samaritan Pentateuch (SP), alongside the Book of Jubilees, Enochic literature, the Sumerian King List, and Berossus.
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Begin with the two timelines
These two foundational tables examine the genealogies through different measurements. Read the Regular chronology first, then compare the Cumulative construction.
01 THE BIRTH CHAIN
Regular chronology
Follow the ages at which patriarchs father the next named generation. Compare MT, LXX, SP, and the sojourn variants within their stated chronological settings.
02 THE LIFESPAN CHAIN
Cumulative chronology
Examine the repository’s lifespan-stacking construction: patriarchal lives are added end to end, rather than treated as overlapping biographies. Compare the resulting structure across traditions.
The dates are reconstructions under stated anchors and conventions, not BC dates printed in the ancient manuscripts. File 18: Chronological Data Tables supplies the underlying source-selected inputs.
Unity does not require identical timelines
The aim is not to erase the differences among the traditions. It is to identify shared spans, calendar ratios, repeated structures, and rules of transformation that may explain how distinct chronologies relate to one another.
One simple example: Adam’s lifespan
In the MT, Adam fathers Seth at 130 and lives another 800 years. In the LXX, the corresponding values are 230 and 700.
MT 130 + 800 = 930
LXX 230 + 700 = 930
The begetting interval changes by 100 years; the lifespan does not. Regular and Cumulative calculations therefore register this particular difference differently. See the comparative tables for the wider genealogy.
Explore the wider study
Follow a subject below, or use the complete File Index to browse by number and title.
Calendars & the Key of 23
Solar and lunar frameworks; priestly, prophetic, and Enochian measures; and the exact ratios used to compare chronological spans.
Ancient comparative witnesses
Jubilees, the Sumerian King List, and Berossus considered alongside the biblical chronologies, with their distinct sources and conventions preserved.
The Book of Jubilees · File 20
Sumer, Berossus & the Bible · File 34
Enoch, Matthew & Luke
Enochic time schemes and their relationship to the genealogical structures of Matthew and Luke, within a Christ-centered reading of the corpus.
The Enochic Seven-Week Core · File 68
The Genealogical Accordion · File 69
Lists & literary structure
Numbered lists and Genesis toledot (“generations”) patterns examined for their chronological, numerical, and theological relationships.
The Biblical List–Chronology Template · File 57
The Genesis Toledot Atonement Weave · File 70
The wider catalog also includes royal chronology, sacrificial and census lists, the Rounded Scaffold, prime-number lattices, and Mirror comparisons.
A Christian framework, with distinct kinds of evidence
The research reads biblical number and time patterns within a Christ-centered theological framework. Its working premise is that divine providence may encompass correspondences across inherited texts and traditions, beyond what any one writer or scribe consciously arranged.
That interpretation is distinguished from the evidence used to investigate it:
- Textual data and reconstruction
- A transmitted age is distinguished from a calculated date or a proposed combination of readings.
- Arithmetic and structural inference
- Computational checks test the stated calculations under their declared inputs. A numerical pattern does not, by itself, establish its historical origin.
- Historical and theological interpretation
- A proposed scribal process, a typological reading, and a providential interpretation answer different questions; none substitutes for the source data.
Consult each source file’s header for its revision and verification status. A focused amendment check is not automatically a new full-file pressure test.
Go to the sources
The WordPress articles and tables provide a reading and discovery layer. The canonical Markdown files—the authoritative plain-text sources—together with the current controls govern the repository’s definitions and calculations.
Find introductory landing pages by file number and title.
Read the full source files directly, for close reading, computational analysis, or AI-assisted study.
Consult the vocabulary, reading rules, chronological conventions, and revision procedures.
Trace source locations, publication records, and archival pointers.
External archives preserve dated snapshots; they do not supersede the current sources. When citing an analysis, record the file’s title, its internal version or revision date, and the date accessed.
This archive brings together formal theological training and forty years of biblical chronology, calendar, and numerical research. It preserves the study for readers, researchers, and further scholarly examination.