人間が金属加工により熟練したようになると、彼らはスズやブロンズなどの他の金属を実験し始めました。 Bronze, an alloy of copper and tin, was harder and stronger than copper alone, and it became the primary material for tools and weapons during the Bronze Age, which lasted from around 3000 to 1200 BCE.
The development of metallurgy was a major turning point in human history, as it allowed humans to create tools and weapons that were more effective and durable than anything that had come before. This advancement led to increased agricultural productivity, improved hunting and gathering techniques, and the development of more complex societies.
