The official start date of World War I was July 28, 1914. This is the date that Austria declared war on Serbia, thus starting the four-year war. This declaration came one month after the assassination of Francis Ferdinan... More »

www.reference.com History Modern History World War 1

Though the conflicts began much earlier, World War II did not officially begin until September 1, 1939. The massive war ended 6 years later in 1945. More »

Nationalism was one of the major factors in the outbreak of WWI, as nationalistic movements caused deeply rooted conflicts between countries. This lead to a number of alliances between countries designed to protect natio... More »

Some of the most important dates in World War I include: July 28, 1914 when Austria-Hungary declared war on Serbia, officially signalling the start of WWI; Aug. 1 and 3, 1914, when Germany declared war on Russia and Fran... More »

World War I was fought from July 28, 1914 to Nov. 11, 1918. The war ended with nearly 10 million dead and 20 million wounded. The German, Austro-Hungarian and Ottoman empires collapsed, leaving geopolitical divisions tha... More »

www.reference.com History Modern History World War 1

According to About.com, Germany was not a major cause of the start of World War I. In fact, it was Austria-Hungary that first declared war on Serbia, leading to the beginning of WWI. Not all countries entered into WWI at... More »

Although the assassination of Austrian Archduke Franz Ferdinand is cited as the main cause that thrust the world into war, many causes and events led up to World War I. Some of the secondary causes include the mutual def... More »