Short answers, pulled from the story.
The Lower Paleolithic period began 3.3 million years ago and ended 300,000 years ago. This era spans from the oldest known stone tools at Lomekwi 3 in Kenya to the transition into the Middle Paleolithic.
The oldest known stone tool technology is Lomekwian technology, discovered at the site of Lomekwi 3 in Kenya. These artifacts date back to 3.3 million years ago and predate the emergence of the genus Homo.
Homo habilis is the hominin species associated with the Oldowan or Mode 1 technology. This industry relied on simple flakes to cleave meat from carrion and break bones to extract marrow during the drying climate of East Africa.
The Acheulean handaxe technology appeared in Africa around 1.5 million years ago and spread across Eurasia. This Mode 2 technology reached Europe, India, and Arabia but remained absent in southeast Asia.
The transition from the Oldowan to the Acheulean industries marked a shift from scavenging to active hunting. This change required new physiological adaptations and social structures as hominins entered direct competition with quadruped predators.