They have done work themselves but they have only did that for about 4 months
Answer:
Plague, the disease caused by the bacterium Yersinia pestis, was the cause; Y. pestis infection most commonly results in bubonic plague, but can cause septicaemic or pneumonic plagues. ... In total, the plague may have reduced the world population from an estimated 475 million to 350–375 million in the 14th century.
Explanation:
<span>The issue that is not included in the first amendment is the right for the people to carry guns. The first amendment is about free speech rights. The right to bear arms is included in the second amendment.</span>