Military conflicts and revolutions played important roles in world history during this time period. Put your knowledge to the test with this Barron's quiz developed from our must-have AP® World History: Modern Premium study guide. #apworldhistory #worldhistory #apprep #apworldexam #apworld #apworldhistorymodern #highschool #grade9 #grade10 #grade11 AP® is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product.