Major Events of December 1900: Key Historical Moments from the Month
Each month is marked by defining moments that shape the course of history. Whether through political shifts, cultural movements, or world-changing events, these periods leave a lasting impression. Dive into the most important events from December 1900 and discover how they influenced the world both then and now.

Major Events of December 1900: Key Historical Moments from the Month
- 06 Dec 1900 Birth of Agnes Moorehead: Agnes Robertson Moorehead, an American actress known for her roles in radio, stage, film, and television, was born on December 6, 1900, in Clinton, Massachusetts. source: en.wikipedia.org
- 07 Dec 1900 Philippine-American War Conflict: Rebel leader General Emilio Verdeflor is killed in battle by troops led by Major H.B. McCoy during the ongoing American war in the Philippines.
- 11 Dec 1900 William D. Coleman resigns as President of Liberia: Facing increasing opposition over his policies towards native tribes and internal governance, William D. Coleman resigned as the 13th President of Liberia on December 11, 1900. His successor, Garretson W. Gibson, assumed office as the 14th President. source: en.wikipedia.org
- 12 Dec 1900 Quantum Mechanics foundational theory published: On December 12, 1900, German physicist Max Planck presented his groundbreaking study on black-body radiation, introducing the concept of energy quanta. This work laid the foundation for quantum mechanics, revolutionizing modern physics. source: history.com
- 13 Dec 1900 Einstein's first academic publication: Albert Einstein's first academic publication, titled "On the Investigation of the State of the Ether in a Magnetic Field," was published in the Annalen der Physik journal on December 13, 1900. This work introduced the concept of the "photoelectric effect," a phenomenon that would later earn him the Nobel Prize in Physics. source: en.wikipedia.org
- 14 Dec 1900 Birth of Quantum Mechanics: Max Planck's Revolutionary Radiation Law: On December 14, 1900, Max Planck presented his quantum theory to the German Physical Society in Berlin, introducing the concept of energy quanta. This marked the birth of quantum mechanics, fundamentally changing the understanding of physics. source: history.com
- 15 Dec 1900 Boer forces defeat British troops in Magaliesberg Battle: On December 15, 1900, during the Second Boer War, Boer forces achieved a significant victory over British troops in the Magaliesberg region. The battle resulted in the capture of British soldiers and the destruction of military supplies. source: en.wikipedia.org
- 16 Dec 1900 Mediterranean Agreement between France and Italy: On December 16, 1900, France and Italy signed the Mediterranean Agreement, a secret treaty aimed at countering the influence of the United Kingdom in the Mediterranean region. The agreement outlined mutual support in case of aggression by a third power. source: en.wikipedia.org
- 22 Dec 1900 Diplomatic note signed in Beijing by Western powers and Japan: On December 22, 1900, at 11:00 AM, the ministers of Western nations and Japan signed a diplomatic note in Beijing, outlining conditions for China to accept. This note addressed serious disturbances and crimes that occurred in northern China earlier that year. source: history.state.gov
- 23 Dec 1900 Marc Allégret, French film director, born: Marc Allégret was born on December 22, 1900, in Basel, Switzerland. He was a French screenwriter, photographer, and film director, known for his exacting film technique and for discovering new talents in French cinema. source: britannica.com
- 28 Dec 1900 First electric furnace steel production: On December 28, 1900, the Heroult Company delivered 9,000 kg of steel bars produced using an electric furnace to Schneider & Co., marking the first steel produced by electrometallurgy. source: en.wikipedia.org