What happened after we discovered gold in georgia in the 1820s?

The difference between ptolemy iii and ptolemy xiv

The 20th amendment, also called the lame duck amendment, decreased the amount of time between the presidential election and the inaugration of the new president. what are the advancements that allowed for this amendment?

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?