made the first successful airplane flight
Wright Brothers
Whose death caused the beginning of World War I?
Archduke Ferdinand
What was the largest British offensive in the East during World War I called?
Gallipoli Campaign
Who developed the theories of relativity?
Einstein
Who formed the Soviet Union in 1922?
Lenin
The Russian empress who embraced Western ideas?
Catherine the Great
Who was Karl Marx's close friend and co-author of the Communist Manifesto
Friedrich Engels
The First Russian Czar
Ivan the Terrible
developed the quantum theory of matter and energy
Max Planck
American "ace" pilot
Eddie Rickenbacker
commander of the American Expeditionary Force
John J. Pershing
Who was President of the United States during World War I?
Wilson
supreme commander of all Central Powers forces
Paul von Hindenburg
theorized that a mosquito carries yellow fever
Carlos Finlay
This man was the leader of Russia's Provisional Government
Kerensky