Answer:
in 1865, the Louisiana legislature began implementing “black codes,” laws that formed the basis for racial segregation. ... The codes stipulated that no more than three African Americans could ever assemble in one place, and gave whites legal authority over blacks when no police officer was present.
The zhou dynasty came to an end during the Warring States period in 256 BCE, when the army of the state of Qin captured the city of Chengzhou and the last zhou ruler, King Nan, was killed.
Answer:
understood the idea of zero as a number
Explanation:
the Mayans developed zero as a placeholder around A.D. 350 and used it to denote a placeholder in their elaborate calendar systems. Despite being highly skilled mathematicians, the Mayans never used zero in equations
