The supreme law of the land in known as the Constitution of the United states. It contains a bill of rights that can be revised and additions can be.made and repealed.
That statement is true.
To be precise, the united states coined both gold and silver in 1873. Before this, gold is the only material that is used to create coin money.
But the cost of production to produce gold coin is really high. Because of this, the government decided to include silver in order to drive the cost of production down in 1973.
Black codes attempted to restrict freedom and get African Americans into labor because of their low wages and/or debt. Jim Crow Laws were racial segregation laws. Plessy v. Ferguson is a Supreme Court case that racially segregated public places