IIRC, it’s not actually easier to make iron (you need higher temperatures), but the ore is more easy to obtain. Copper and tin ores are rarely found together, so you need long-range trading to make lots of bronze.
IIRC, it’s not actually easier to make iron (you need higher temperatures), but the ore is more easy to obtain. Copper and tin ores are rarely found together, so you need long-range trading to make lots of bronze.