#628 When did people start using nails?
When did people start using nails? Bronze nails were used in Ancient Egypt in about 3,400 BC. Before people had nails, there were different ways of joining wood together. Some…
When did people start using nails? Bronze nails were used in Ancient Egypt in about 3,400 BC. Before people had nails, there were different ways of joining wood together. Some…
Is an Olympic gold medal really made of gold? The gold medal the winners at the Olympics get is only 7.5% gold. It is 92.5% silver with only a gold-plating…
I learned this today. The Bronze Age started because people discovered that combining copper and tin made a stronger alloy called bronze. In the three-age system of the world that…