00:00Somewhere between 5,000 and 6,000 years ago, a curious craftsperson threw a strange stone
00:06into a fire. Instead of cracking, it melted into something humanity had never seen before.
00:13That accidental moment sparked the metal age and changed civilization forever.
00:19First came the copper age, where native copper was hammered into tools. Then around 3300 BCA,
00:26metal workers discovered bronze. Copper mixed with tin. It was harder, sharper and transformed
00:33warfare, trade and society. But here's the twist. Tin was incredibly rare. This chaos city created
00:42history's first global trade networks, connecting civilizations across continents. The Bronze Age
00:48gave rise to superpowers. They built empires on bronze. Then around 1200 BCA, the Bronze Age
00:55world collapsed. Trade routes failed. From this chaos rose iron, unlike bronze, iron ore was
01:02everywhere. But it required high temperatures and complex carburization techniques to master.
01:09The metal age did not just create better tools. It reshaped social hierarchies, specialized labor,
01:16agriculture and warfare. Its legacy lives on in every steel building and modern alloy we use today.
01:22Visit metricstecheeducator.com right now for the complete story of the metal age plus more fascinating
01:30insights into history, science and health that shape your life.
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