January 1, 1900
Agreement between Great Britain and Germany signed on October 6, 1900, signed by Prime Minister Robert Gascoyne-Cecil and Ambassador Paul von Hatzfeldt respectively, stating both parties' opposition to the partition of China into spheres of influence
1900 battle of the Philippine-American War
Treaty between Spain and the United States
Battle between Mexican Army and Yaquis, 1900
February 18, 1900; a day of high casualties in the Second Boer War
Accusation of Jewish ritual murder in 1900
Battle of the Second Boer War (31st March 1900)
1900 battle of the Philippine–American War
Battle during the Second Boer War