Cotton gin- Eli Whitney
iron plow- Jethro Wood
steel plow- Oliver
reaping machine- Cyrus McCormick
clothing factory- Francis Lowell
sewing machine- Elias Howe
 Hope that helped :)
        
             
        
        
        
A system of peace treaties that involved harsh penalties for aggressor nations and their allies
        
             
        
        
        
Answer:
nobody can own a person 
Explanation:
this is because masters of slaves think they own the lives of the slaves
 
        
             
        
        
        
Answer:
It increased the number of soldiers available to fight and allowed them to overwhelm the confederates.