The Code of Hammurabi is a well-preserved Babylonian code of law of ancient Mesopotamia, dating back to about 1754 BC (Middle Chronology). It is one of the oldest deciphered writings of significant length in the world. The sixth Babylonian king, Hammurabi, enacted the code, and partial copies exist on a 2.25 metre (7.5 ft) stone stele and consists of 282 laws, with scaled punishments, adjusting "an eye for an eye, a tooth for a tooth" (lex talionis)[1] as graded depending on social status, of slave versus free man or woman.[2]
I believe both originated and evolved in the United States during the late 1940s and early 1950s
Charlemagne was crowned emperor of the west in 800 CE.
The United States was forced to ask itself harsh questions about race and equality after WWII because many blacks and women had been called in a variety of ways to help their country, which did not treat them fairly back home--leading to accusations of hypocrisy.