<span>civilizations
cultural exchanges
mercantilism
women's roles
language development
So all of those above this sentence were advanced by trade in the second millennium
Hope this helps!</span><span />
Municipal courts of civil procedure
Answer: A. An organization of workers that fought for an eight-hour workday
Explanation:
The Knights of Labor started as <em>a secret organization</em>, which was founded in the 19th century by a small group of tailors from Philadelphia. The organization promoted the rights of workers and its main concern was labor and laborers' rights and position in society.
This organization grew in size throughout the years, reaching 800.000 members in 1886. It operated in the United States and Canada mainly, but it also had representatives in Australia and Great Britain. From a secret organization, it gradually turned into a laborers' union.
The Knights of Labor fought for an 8 hour workday and ending child and convinct labor.
The correct answer is option B.
Edmond Halley correctly predicted the return of the eponymous comet Halley after he realized several sightings of a comet were in fact the same comet.
By correctly understanding Sir Isaac Newton's law of gravity and also his ideas in mathematics, Halley was able to correctly predict that the comet that now bears his name would return periodically. He did this by discovering Halley's orbit in 1716 and thus being able to predict the year of its return.