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For each branch split I determined the number of descendants and lists the branches that have exceptional number of descending lines. On these pages i report the branch splits that are older than 1500ybp.
A list of exceptional population jumps is reported. For exceptional population jumps i used a criterium of at least 8 descending lines for the period between 1500-4000ybp. For the period before that, i used a lower numbers, since we also have fewer branch splits, so a lower criterium can have the same significance.
A complete list of branch splits is reported separately.
Different groups have different population growth. The following reasons for a population jump are suggested:
| period | min. # of descending branches |
| 20000-8000ybp | 5 |
| 8000-7000ybp | 6 |
| 7000-6000ybp | 6 |
| 6000-5000ybp | 6 |
| 5000-4000ybp | 8 |
| 4000-3500ybp | 8 |
| 3500-3000ybp | 8 |
| 3000-2500ybp | 8 |
| 2500-2000ybp | 8 |
| 2000-1500ybp | 8 |
| Blue | Crossing Berint Strait Q, 12000 ybp |
| Blue | Satem of IE (R1a) |
| Cyan | Centum of IE (R1b-M269 and I1) |
| Green | Anatolian farmers G, 10000 ybp |
| Green | Copper Age in Middle East (J2, J1, E-M84) |
| Green | Albania (R1b-Z2103--Z2705) |
| Green | Arab Expansion (J1-FGC11) |
| Pink | Slavic (I2-Y3120 and friends) |
| Red | Chinese farmers (O) |
| Red | African agriculture and Bantu expansion (E1b-V38) |
| Red | Greece in IE language branch (J2b-L283 and E1b-V13) |
| Red | Finnic (N) |
| Red | Berber in Maghreb (E-M81) |
| Black | Others: see below |
The exceptional population jumps are in the List, with references to the origin of the population expansion. In some branches the location of the branch is probably not the same location as the origin of the branch. This is explained on the Time Maps page. This is the case for the E-V13, J2b-L283 and E-V22 branches where descendents left the area of the origin, and several went to western Europe, where many people tested.
