We only know about when humans mastered fire or started using metal. But we know the exact date when the first powered flight took place. What are some really early “first ____” we know the date of for sure?
We only know about when humans mastered fire or started using metal. But we know the exact date when the first powered flight took place. What are some really early “first ____” we know the date of for sure?
It’s relatively easy for recent things related to big technological advances (first phone call, first man in space…); but it’s nearly impossible for really old thing, because while you can find out one really old thing existed at one time, it’s always merely the oldest known occurence. An earlier one might’ve not left surviving traces, or it’s traces might’ve not been found yet…