In the year 1912...
- The allegedly unsinkable British ocean liner Titanic sinks on its maiden voyage after striking an iceberg in the North Atlantic.
- Chinese boy Emperor Pu Yi abdicates in favor of the new Chinese Republic, officially ending the 300-year old Qing Dynasty.
- An allegedly "defensive" alliance between Serbia, Bugaria, Greece, and Montenegro forms and then immediately attacks the Ottoman Empire, setting off the Balkan Wars.
- US troops intervene in support of pro-US dictators in Nicaragua, Honduras, and Cuba.
- The Chinese revolutionary party Kuomintang is organized by Sung Chiao-jen under the nominal leadership of Sun Yat-sen.
- The African National Congress is founded in South Africa.
- British biochemist Sir Frederick Hopkins and Polish-born American biochemist Casimir Funk recognize the link between vitamins and health. Funk coins the term "vitamin" from "vital amine".
- French surgeon Alexis Carrel develops a method for joining blood vessels, making possible the transplantation of organs.
- German airship pioneer Ferdinand Graf von Zeppelin creates the first commercial airline, DELAG. His airships will carry 34,000 passengers by the start of World War I.
- Jim Thorpe dominates Stockholm Olympic Games, winning the pentathlon and decathlon, but is stripped of his medals when it is discovered he once played semi-pro baseball. Meanwhile, female athletes appear in the Olympics for the first time.
- New Mexico and Arizona become America's 47th and 48th states.
- Construction work begins on what will become New Delhi.
- A small Russian communist newspaper, Pravda ("truth") begins publication, with a young Josef Stalin as one of its editors. The paper will later become the official daily of the Russian Communist Party.
- Rice University opens.
- Followers of Italian educator Maria Montessori establish the first Montessori school in Tarrytown, NY.
- The Girl Scouts are founded in Savannah, Georgia by Juliette Gordon Low.
These people were born in 1912:
These people died in 1912:
1911 - 1912 - 1913