Why does creating an eye in bone needles signify material manipulation?

Answer

It required the ability to pierce hard material without fracturing the shaft

Shaping a splinter of bone into a slender shaft and then piercing a hole through it without causing the material to crack required immense fine motor control and an expert understanding of material stress. This skill set distinguished early needle-makers as specialized toolmakers compared to general populations of the time.

Why does creating an eye in bone needles signify material manipulation?

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History of Sewing Needles for Embroidery and More - YouTube

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