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The earliest unambiguous weapons to be found are the Schöninger Speere: eight wooden throwing spears dated as being more than 300,000 years old.

At the site of Nataruk in Turkana, Kenya, numerous human skeletons dating to 10,000 years ago may present evidence of major traumatic injuries to the head, neck, ribs, knees and hands, including obsidian projectiles still embedded in the bones, that might have been caused by arrows and clubs in the context of conflict between two hunter-gatherer groups, Ancient weapons were evolutionary improvements of late neolithic implements, but then significant improvements in materials and crafting techniques created a series of revolutions in military technology: The development of metal tools, beginning with copper during the Copper Age (about 3,300 BC) and followed shortly by bronze led to the Bronze Age sword and similar weapons.

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The oldest pocket knife (or “jackknife”) ever discovered dates back to around 600-500 BC.

It was unearthed in Hallstatt, Austria, and it features a single blade with a bone handle.

Romans were the next group to really use the pocket knife as a tool.

Many bronze “friction folders” have been discovered from the Roman Empire.

Aerial Photography - The various techniques of taking photographs of natural or cultural features from the air, using balloons, airplanes, satellites, and other sources, in order to study the features in their entirety from a top-down (bird's eye) view.