This is the Speaker of the House. Today that would be Paul Ryan.
Answer:
The answer is the invention of the cotton gin.
Explanation:
In 1794, U.S.-born inventor Eli Whitney (1765-1825) patented the cotton gin, a machine that revolutionized the production of cotton by greatly speeding up the process of removing seeds from cotton fiber. By the mid-19th century, cotton had become America’s leading export. Despite its success, the gin made little money for Whitney due to patent-infringement issues.
One inadvertent result of the cotton gin’s success, however, was that it helped strengthen slavery in the South. Although the cotton gin made cotton processing less labor-intensive, it helped planters earn greater profits, prompting them to grow larger crops, which in turn required more people.
The correct answer is option number three.
Although originally there was no specific code of conduct for Knights, later on however, -somewhere toward the end of the Middle Ages- the Code of Chivalry was established to govern the conduct and behavior of Knights
This code formulated guidelines for all knights to follow such as:
all knights should be honorable, merciful, honest and loyal. It also bound knights to protect those in need, particularly the poor and anyone unable to protect themselves, particularly women and children.