A more thorough explanation:

The gold standard is a monetary system where a country's currency is backed by gold or gold coins. This means that the currency can be exchanged for its equivalent value in gold. For example, if a country's currency is backed by gold, then a person can exchange their paper money for gold coins of the same value.

The United States used the gold standard from 1900 to 1934. During this time, people could exchange their paper money for gold coins at a fixed rate. However, the gold standard was abandoned in 1934 due to economic reasons.

Another example of the gold standard is when a person invests in gold. They are essentially buying a physical asset that has a certain value. The value of gold is determined by the market demand and supply, and it can fluctuate over time.

The gold standard is a way to ensure that a country's currency has a stable value. It provides a fixed exchange rate between the currency and gold, which can help prevent inflation and other economic problems. However, it also has its drawbacks, such as limiting a country's ability to print more money and potentially causing deflation.