# Start here: the chronological families

The connected explanation follows the source mechanisms through complete families. Its strongest new links are SP births → lifespan caps → the calendar rectangle, and the Rounded Moses path → File52c’s original Regular duration words. The Regular/Cumulative row model, Covenant joins and NT comparisons explain how the same measurement methods preserve different source information.

- [Main explanation —14-page PDF](sandbox:/workspace/scratch/1b40da62dcbd/c1132_c1431/deliverables/490d_Chronological_Families_Explanation_C1431_Print.pdf)
- [Main explanation —Markdown](sandbox:/workspace/scratch/1b40da62dcbd/c1132_c1431/deliverables/490d_Chronological_Families_Explanation_C1431.md)
- [Technical companion —7-page PDF](sandbox:/workspace/scratch/1b40da62dcbd/c1132_c1431/deliverables/490d_Technical_Companion_C1431_Print.pdf)
- [Family map](sandbox:/workspace/scratch/1b40da62dcbd/c1132_c1431/deliverables/Chronological_Families_Map.png)
- [Four-part grammar overview](sandbox:/workspace/scratch/1b40da62dcbd/c1132_c1431/deliverables/490d_Four_Part_Grammar_Overview_C1431.md)
- [Reading guide and further references](sandbox:/workspace/scratch/1b40da62dcbd/c1132_c1431/deliverables/490d_Reading_Guide_C1431.md)

Latest File52c governs the Rounded/inverse branch. The inverse of the inverse remains deferred.