when was the bow and arrow first invented
Bow and arrow The earliest definite remains of bow and arrow are from Europe. Possible fragments from Germany were found at Mannheim-Vogelstang dated 17,500-18,000 years ago, and at Stellmoor dated 11,000 years ago. Azilian points found in Grotte du Bichon, Switzerland, alongside the remains of both a bear and a hunter, with flint fragments found in the bear's third vertebra, suggest the use of arrows at 13,500 years ago.[7] At the site of Nataruk in Turkana County, Kenya, obsidian bladelets found embedded in a skull and within the thoracic cavity of another skeleton, suggest the use of stone-tipped arrows as weapons about 10,000 years ago.[8] Microliths discovered on the south coast of Africa suggest that projectile weapons of some sort may be at least 71,000 years old.[9]
Mass production Crossbows made with bronze parts were produced in China during the Warring States period. The Qin Emperor unified China at least in part by equipping large armies with these weapons, which were equipped with a sophisticated trigger mechanism made of interchangeable parts.[4] Ships of war were produced on a large scale at a moderate cost by the Carthaginians in their excellent harbors, allowing them to efficiently maintain their control of the Mediterranean. The Venetians themselves also produced ships using prefabricated parts and assembly lines many centuries later. The Venetian Arsenal apparently produced nearly one ship every day, in what was effectively the world's first factory which, at its height, employed 16,000 people. Mass production in the publishing industry has been commonplace since the Gutenberg Bible was published using a printing press in the mid-15th century.