Sahelanthropus tchadensis (Toumaï) in Chad: the oldest known hominin, already bipedal, marks the start of a 7-million-year evolutionary journey towards Homo sapiens.
Sima de los Huesos (Atapuerca, Spain): 29 Homo heidelbergensis individuals deposited at the bottom of a natural shaft, possibly humanity's first organised funerary gesture.
Border Cave (Lebombo, South Africa): the oldest known plant-based beds. Fresh grass laid on ash to repel insects and moisture, bedding burned before each renewal — sustained over 150,000 years.
Nefud Desert (Saudi Arabia): the Al Wusta phalanx, the oldest Homo sapiens bone found outside Africa and the Levant. Green Arabia, humanity's overlooked crossroads.
Toba supereruption (Sumatra): the largest volcanic eruption of the past two million years (VEI 8, ~2,800 km³). A famous but now contested theory holds that it reduced humanity to a few thousand individuals.
Amud Cave (Israel): Amud 7, a 6-month-old Neanderthal infant, already had the size of a 13-month-old Homo sapiens child. Growth rate twice as fast as our own.
Belgium and northern France: genomes of 27 Neanderthals reveal normal genetic health — no inbreeding, good diversity. Their extinction remains an enigma.