13) After major military conflict in the war was over. a. Cornwallis's surrender at Yorktown
b. Burgoyne's surrender at Saratoga
c. the British evacuation of Boston
d. the capture of New York City by French forces

so they can defeat there oppenent

porter is writing economic history because he is focusing on the cost of developing vaccines.

hernan cortes;

explanation:

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow