If I were to somehow actually time travel but only to the past, how could I prove it?

[ThumberOne]

Not to be a downer but with enough effort counterfiets can be made with recent gold

 

[steven chiverton]

isent it not known what they used to make them old coins with they dident have coin presses in them days

 

[ThumberOne]

isent it not known what they used to make them old coins with they dident have coin presses in them days

We didn't have power tools in the past but they can be used to build a replica of old ships