March 11, 1900
Violent clashes in Mauritius between 1900–1906
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
Battle of the Second Boer War (31st March 1900)
1900 battle of the Philippine–American War
Battle during the Second Boer War