Cold war to present By lyncaur 1945 baby boom https://docs.google.com/document/d/1F_AD9Jae7oiwCVpjVMoemGToYIBsrAjfQ9lp1gwpSzY/edit 1961 Berlin wall https://docs.google.com/document/d/12VmbibP-inEwWjLc5DXYijhScjGaJyYuyZl8NJ27t1s/edit?usp=sharing
