1900 AD
- Gwen’s family starts making candy hearts out of earwig honey and bone meal. (Alternate First)
1904 AD
- February 8–9 – Battle of Port Arthur: A surprise Japanese naval attack on Port Arthur (Lüshun) in Manchuria starts the Russo-Japanese War.
1906 AD
- St. Petersburg, Russia, Dowager Empress Maria Feodorovna comforts her youngest granddaughter, Grand Duchess Anastasia Nikolaevna of Russia
- April 23 – In the Russian Empire, the Fundamental Laws are announced at the first state Duma.
1908 AD
- November 3 – 1908 United States presidential election: Republican candidate William Howard Taft defeats William Jennings Bryan,
1909 AD
- March 4 – Theodore Roosevelt steps down and William Howard Taft is inaugurated as President of the United States.
1911 AD
- May 30 – The Indy 500 is first held.
1913 AD
- March – The House of Romanov celebrates the 300th anniversary of its succession to the throne, amidst an outpouring of monarchist sentiment in Russia.