Before the United States used Fiat money, we based our currency on an exchange with a particular precious metal. What standard did the United States use before Fiat currency?

The correct answer is the United States used"gold" as the standard.

Explanation: The United States began abandoning gold in 1933, but it was not until 1971 that Fiat money became the norm.

the first forms of writing came from them in the form of pictographs around 3100 bc.

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.