Answer:
Black codes were enacted right after the Civil War.
Explanation:
Black Codes were laws created by former Confederate states after the Civil War to weaken the status of blacks in those states. Laws began to be created in 1865 with the passage of the 13th Amendment to the Constitution in the United States, which officially liberated all black slaves.
Black Codes had time to be created for more than a year before Congress, with a Republican party opposed to slavery in the majority, passed the Civil Rights Act and the 14th and 15th Amendments to the Constitution. In the late 1870s, however, the position of blacks weakened again as racist extremism, led by the Ku Klux Klan, intensified.
I know for sure one group would be merchants. They were the ones travelling to potentially infected areas---buying things with the plague's germs, and selling it to people on areas that WEREN'T previously infected. Sailors too I believe, for very similar reasons and because rats were infected, and rats caught rides on ships and spread the disease wherever the ship docked.
Hope this helped. :)
One way in which the code of Hammurabi, the twelve tables and the Justinian code are similar is that they were all early documents that set laws for human behavior.
i think you mean antibiotic ... but Alexander Fleming was the one who advanced the antibiotic (world) and was responsible for creating these categories of medicine... this affected the 20th century because millions of people use antibiotics everyday and without them... many diseases would still affect people without a cure
