The Oklahoma Territorial Museum & Historic Carnegie Library hosts a traveling poster exhibit created by the Smithsonian in honor of America's entry into “The War to End All Wars” in 1917. World War I: Lessons and Legacies explores the war and its lasting impact and far-reaching influence on American life. Sparked by the assassination of one man, the war eventually included the forces of the world's major industrial powers (over 18 countries) and ended with millions dead. World War I also gave rise to significant and enduring changes in America. Wartime technologies and medical advances resulted in new industries and novel ways to fight disease and treat disability. Women and minority participation in the war led to women’s voting rights and raised awareness on civil rights issues throughout society. The war led to pivotal changes in America's culture, technology, economy, and role in the world. It redefined how we saw ourselves as Americans and its legacy continues today. Developed for middle and high school students, the eight posters feature historical photographs, documents, graphics, educational text, and a design that reflects the modernity the war’s end brought to the 20th century.