The catch is that the iron age happened at different times in different places. When that Egyptian dagger was likely made, people were already smelting iron in

The catch is that the iron age happened at different times in different places. When that Egyptian dagger was likely made, people were already smelting iron in India and sub-Saharan Africa. Chemical analysis can rule that out though, lots of nickel and very little carbon indicate that it came from a meteorite.