The map shows triumph and tragedy's our race has faced. The start in Africa, the failed colonization efforts by the "Cain" branch followed by "Seth" or "Adam." The Indian Ocean coast was the main path of migration until the Mt Toba eruption nearly killed off humanity. Southeast Asia then became the new starting point for the third wave of human migration.
The map also has additional information for each stage. Note how the cycles of global warming and cooling impacted the spread and decline of humans from locations.
The proto-Catholicgauzes sure were a traveling group. It is a wonder that they managed to survive and thrive while others perished.
(Hat tip: Infonaut)