This resource presents comprehensive coverage of the World War I period. World War I: Almanac contains 12 chapters covering major topics related to the period, including the roots of the war; causes of U.S. involvement; the Espionage Act and Sedition Act; weapons of mass destruction; and more. Other features include photos and maps, a detailed chronology of events, sidebars featuring related information, an index, a glossary of Words to Know, research and activity ideas, and a list of further reading sources.