#1
Which event triggered the start of World War 1?
#2
Which battle is often considered a turning point in favor of the Allies in World War 1?
#3
What was the 'Lusitania' and why did its sinking contribute to tensions in World War 1?
#4
Which countries were part of the Central Powers during World War 1?
#5
What was the significance of the Battle of the Somme in World War 1?
#6
What was the purpose of the Schlieffen Plan in World War 1?
#7
Which new weapon technology had a significant impact on trench warfare during World War 1?
#8
What was the immediate cause for the United States to enter World War 1?
#9