Editing Dogon People -- Key Persons Directory (section)

==== Carl Sagan (1934-1996) ====
American astronomer, cosmologist, and science communicator. In "Broca's Brain" (1979), addressed the Dogon mystery and agreed that the knowledge was remarkable if genuine, but proposed the source was terrestrial -- European contacts between the 1862 discovery of Sirius B and Griaule's 1931 fieldwork. Sagan's position is often cited as supporting the contamination hypothesis, though he was specifically proposing pre-Griaule European contact rather than Griaule himself as the mechanism.