That's bullshit because a full fledged global economy didn't develop until the internet came about. Ancient history is all speculation nobody is alive to tell it so it's all up in the air & can be debated endlessly. Like the kingsbridge grand cathredral was it really built by people during it's time period or was it already there & just discovered?

Theres many who believe it was already there because of the intricate details to the church. Their so precise & perfect there was no laser technology back then so it's believed because of how perfect the details are it had to have been built long before our history began recording.

The pyramids how they we're built is another example of endless debate. The water mixing with sand technique couldn't have been possible for every block maybe the foundation layers but again another topic speculated either by aliens, the first civilization from a future age, or the slaves really did build it. Ancient history isn't tangable & has too many wholes to be concrete to acknowledge as a fact only speculation to debation.