Oldowan Chopper: , Where: Eastern Africa, When: Around 2.6 million years ago, Acheulean Hand Axe: , Where: Kokiselei 4 site in the Rift valley of Kenya, When: About 1.76 million years ago, Levallois Flake: , Where: Levallois-Perret suburb of Paris, France, When: Developed around 250,000 to 300,000 years ago, Stone Scraper: , Where: Widely used in prehistoric Europe and Africa, When: Dates back to the Early Holocene, Bone Awl: , Where: Invented in Africa and carried to colder climates, When: About 77,000 years old (discovered in Blombos Cave, South Africa), Stone Sickle: , Where: Dynastic Egypt and Ali Kosh, Iran9., When: About 8,600 - 8,000 years old (Iran), Copper Axe: , Where: Southern Tuscany, Italy, When: Copper Age, around 5,300 years ago, Bronze Dagger: , Where: Prehistoric Europe, When: Fourth millennium BC,

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