When were the oldest known stone tools discovered at Lomekwi 3 in Kenya?
Researchers uncovered stone tools at a site called Lomekwi 3 in Kenya in 2015. These artifacts date back to 3.3 million years ago and predate the Pleistocene epoch.
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Researchers uncovered stone tools at a site called Lomekwi 3 in Kenya in 2015. These artifacts date back to 3.3 million years ago and predate the Pleistocene epoch.
Climate changes in East Africa led to drier conditions and expanded savannahs that reduced fruit availability. Decreasing oceanic evaporation forced proto-australopithecines to seek new food sources in open grasslands.
Homo erectus appeared approximately 1.8 million years ago through the transitional variety known as Homo ergaster. Early humans migrated out of Africa and spread across Eurasia with stone tools found in Malaysia dating back to 1.83 million years old.
British archaeologist Robert Bruce Foote discovered type sites at Attirampakkam and Pallavaram in 1863. Tools found at Attirampakkam have been dated to 1.5 million years old using cosmic-ray exposure dating.
Brain expansion occurred threefold within just 2 to 2.3 million years of the Pleistocene epoch. This growth responded to increasingly complex societies and changing habitats while driving verbal and non-verbal communication development.