Wool und sickle: was sie gemeinsam haben

1. Schritt 1. Wool — ist Material für — Trousers. The oldest trousers (Yanghai) were sewn from wool.
2. Schritt 2. Trousers — nutzt — Needle. Trousers were sewn with a needle.
3. Schritt 3. Needle — entwickelte sich aus — Stone tool. Bone needles with an eye are part of the Palaeolithic toolkit.
4. Schritt 4. Stone tool — entwickelte sich zu — Sickle. The first sickles had flint inserts.

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