Answer:
World War 2
Explanation:
As Americans were reeling from the attack on Pearl Harbor in 1941, four boxes, meticulously packaged and inventoried, left Washington, D.C., on a train with two Secret Service agents heading West. Inside, were the founding documents of the United States of America. These documents were so precious, President Franklin Roosevelt wanted to guarantee their preservation in the event that Axis powers bombed Washington. A new book chronicles the history and their journey.
