World War I and 1917

World War I:

• Battle of Tannenberg
• Brusilov Offensive
• Eastern Front
• War Industries Committee
• Petrograd
• Union of Zemstvos
• Progressive Bloc
• P. N. Miliukov
• "is this stupidity or is this treason?"
• Felix Yusupov

1917

• International Women's Day
• general strike
• February Revolution
• Provisional Government (or Provisional Committee of the State Duma)
• Petrograd Soviet of Workers' and Soldiers' Deputies
• dual power
• Alexander Kerenskii