Answer:
Reform efforts during this time gave birth to a number of important changes in the United States and Great Britain. These included mandatory public education, child labor laws, and eight-hour workdays. Reforms also addressed minimum wage, compensation for workplace accidents, and improved sanitation infrastructure.
Explanation:
 
        
             
        
        
        
Offered advice on getting and keeping power
        
             
        
        
        
1900's is when they increased most 
        
             
        
        
        
<span>The Black Death (Bubonic Plague) followed the Trade Routes. The Trade routes provided access to all corners of the known world. The increased use of the trade routes ensured that the disease spread throughout the World. We should also remember that it was not just Europe and Africa that were devastated by the deadly disease. Countries such as China suffered horrendously from the 1328 outbreak with their population dropping from 125 million to 90 million during just the middle half of 14th century. 
hope it helped:)</span>
        
             
        
        
        
Answer:
The political power of the Abbasids largely ended with the rise of the Buyids and the Seljuq Turks in 1258 CE. Though lacking in political power, the dynasty continued to claim authority in religious matters until after the Ottoman conquest of Egypt in 1517.