Eli5 why did the Bronze Age happen before the Iron Age?

Question

I would have thought that with bronze being an alloy it would have been more difficult to work with than iron, so why was it the first to become widely used?

In: 2489

Answer 1

because copper and tin melt at “low” temperatures and were “widely” used. someone had the idea (or made an error) and mixed the two materials: “ehy it’s harder!!”

Iron is way more difficult to melt; due to the higher melting temperature