Black codes existed during the Reconstruction Era, which lasted from 1865 to 1877.
1. royal government
2. proclamation of 1963
I think they are still used and relevant today because people know that they are very significant. people take that they were written long ago into consideration and that makes it more valuable
Explanation: It was one of the largest cities of the ancient Indus Valley Civilization, also known as the Harappan Civilization, which developed around 3,000 BCE from the prehistoric Indus culture. ... Mohenjo-daro was the most advanced city of its time, with remarkably sophisticated civil engineering and urban planning.