On Nov. 11, 1918, the mayor of St. Louis declared a holiday to celebrate the end of World War I. Accounts in local papers claimed there were more than 100 parades going on at once. The war was the beginning of an era that paved the way for the economic, social, and political changes to come, and mobilized more than 70 million military personnel in one of the largest wars in history. Here's a look back at the war in photos.
Looking back: A celebration of the end of World War I