January
Main article: January 1910
January 10–January 20 – The first aviation meeting to be held in the United States, the 1910 Los Angeles International Air Meet at Dominguez Field, is held near Los Angeles.
Comet Halley's tail
February
Main article: February 1910
February 8 – William D. Boyce founds the Boy Scouts of America.
February 20 – Boutros Ghali, the first native-born prime minister of Egypt, is assassinated.
March
Main article: March 1910
March – An uprising against Ottoman rule breaks out in Albania.
March 8 – In France Raymonde de Laroche is awarded pilot's license #36 by the Federation Aeronautique Internationale, becoming the first woman authorized to fly an airplane. March 10 – Slavery in China, which has existed since the Shang dynasty, is now illegal.
March 18 – The first filmed version of Mary Shelley's Frankenstein comes out. Considered to be the first horror movie, it stars actor Charles Ogle as the monster.
March 27 – A fire during a barn-dance in Ököritófülpös, Hungary kills 312.
April
Main article: April 1910
April 20 – Comet Halley is visible from Earth. It won't be seen again until 1986.
May
Main article: May 1910
May 6: King George V
May 6 – George V becomes King of the United Kingdom of Great Britain and Ireland upon the death of his father, Edward VII.
May 12 – Second NAACP meeting is held in New York.
May 18 – The Earth passes through the tail of Comet Halley.
May 31 – The Union of South Africa is created.
June
Main article: June 1910
June 15 – The British Ship Terra Nova leaves London on its way toward an Antarctic expedition.
June 22 – The DELAG Zeppelin dirigible, Deutschland, makes the first commercial passenger flight from Friedrichshafen to Düsseldorf in Germany. The flight takes nine hours.
June 25 – The ballet The Firebird (L'Oiseau de feu), the first major work by Russian composer Igor Stravinsky, commissioned by Diaghilev's Ballets Russes, is premièred in Paris, bringing the composer international fame.
July
Main article: July 1910
July 4 – African-American boxer Jack Johnson defeats American boxer James J. Jeffries in a heavyweight boxing match, sparking race riots across the United States.
July 22 – A wireless telegraph sent from the SS Montrose results in the identification, arrest and execution of murderer Dr. Hawley Crippen.
July 24 – Ottoman forces capture the city of Shkodër to put down the Albanian Revolt of 1910.
August
Main article: August 1910
August – Pan-American Union
August 14 – A fire at the Brussels International 1910 destroys exhibitions of Britain and France.
August 22 – The Japan–Korea Annexation Treaty is signed. It becomes null and void in 1965.
August 28 – Montenegro is proclaimed an independent kingdom under Nicholas I.
August 29 – Emperor Sunjong of Korea abdicates and the country's monarchy is abolished.
September
Main article: September 1910
September 1 – The Vatican introduces a compulsory oath against modernism, to be taken by all priests upon ordination.
October
Main article: October 1910
October – First publication of infrared photographs, by Professor Robert Williams Wood in the Royal Photographic Society's journal.
October 5 – 5 October 1910 revolution in Portugal leading to the flight of King Manuel II of Portugal to England and proclamation of the First Portuguese Republic.
October 20 – The hull of RMS Olympic is launched at the Harland and Wolff Shipyards in Belfast.
October 23 – Vajiravudh (Rama VI) is crowned King of Siam, after the death of his father, King Chulalongkorn (Rama V).
November
Main article: November 1910
November 7 – The first air flight for the purpose of delivering commercial freight takes place in the United States. The flight, made by Wright brothers pilot Philip Parmalee, is between Dayton and Columbus, Ohio.
November 14 – In the first takeoff from a ship by a fixed-wing aircraft, Eugene Ely takes off from a temporary platform erected over the bow of the light cruiser USS Birmingham in Hampton Roads, Virginia.
November 20 – Mexican Revolution: Francisco I. Madero proclaims the elections of 1910 null and void, and calls for an armed revolution at 6 p.m. against the illegitimate presidency/dictatorship of Porfirio Díaz.
December
Main article: December 1910
Late December – A form of pneumonic plague spreads through northeastern China, killing more than 40,000
Main article: January 1910
January 10–January 20 – The first aviation meeting to be held in the United States, the 1910 Los Angeles International Air Meet at Dominguez Field, is held near Los Angeles.
Comet Halley's tail
February
Main article: February 1910
February 8 – William D. Boyce founds the Boy Scouts of America.
February 20 – Boutros Ghali, the first native-born prime minister of Egypt, is assassinated.
March
Main article: March 1910
March – An uprising against Ottoman rule breaks out in Albania.
March 8 – In France Raymonde de Laroche is awarded pilot's license #36 by the Federation Aeronautique Internationale, becoming the first woman authorized to fly an airplane. March 10 – Slavery in China, which has existed since the Shang dynasty, is now illegal.
March 18 – The first filmed version of Mary Shelley's Frankenstein comes out. Considered to be the first horror movie, it stars actor Charles Ogle as the monster.
March 27 – A fire during a barn-dance in Ököritófülpös, Hungary kills 312.
April
Main article: April 1910
April 20 – Comet Halley is visible from Earth. It won't be seen again until 1986.
May
Main article: May 1910
May 6: King George V
May 6 – George V becomes King of the United Kingdom of Great Britain and Ireland upon the death of his father, Edward VII.
May 12 – Second NAACP meeting is held in New York.
May 18 – The Earth passes through the tail of Comet Halley.
May 31 – The Union of South Africa is created.
June
Main article: June 1910
June 15 – The British Ship Terra Nova leaves London on its way toward an Antarctic expedition.
June 22 – The DELAG Zeppelin dirigible, Deutschland, makes the first commercial passenger flight from Friedrichshafen to Düsseldorf in Germany. The flight takes nine hours.
June 25 – The ballet The Firebird (L'Oiseau de feu), the first major work by Russian composer Igor Stravinsky, commissioned by Diaghilev's Ballets Russes, is premièred in Paris, bringing the composer international fame.
July
Main article: July 1910
July 4 – African-American boxer Jack Johnson defeats American boxer James J. Jeffries in a heavyweight boxing match, sparking race riots across the United States.
July 22 – A wireless telegraph sent from the SS Montrose results in the identification, arrest and execution of murderer Dr. Hawley Crippen.
July 24 – Ottoman forces capture the city of Shkodër to put down the Albanian Revolt of 1910.
August
Main article: August 1910
August – Pan-American Union
August 14 – A fire at the Brussels International 1910 destroys exhibitions of Britain and France.
August 22 – The Japan–Korea Annexation Treaty is signed. It becomes null and void in 1965.
August 28 – Montenegro is proclaimed an independent kingdom under Nicholas I.
August 29 – Emperor Sunjong of Korea abdicates and the country's monarchy is abolished.
September
Main article: September 1910
September 1 – The Vatican introduces a compulsory oath against modernism, to be taken by all priests upon ordination.
October
Main article: October 1910
October – First publication of infrared photographs, by Professor Robert Williams Wood in the Royal Photographic Society's journal.
October 5 – 5 October 1910 revolution in Portugal leading to the flight of King Manuel II of Portugal to England and proclamation of the First Portuguese Republic.
October 20 – The hull of RMS Olympic is launched at the Harland and Wolff Shipyards in Belfast.
October 23 – Vajiravudh (Rama VI) is crowned King of Siam, after the death of his father, King Chulalongkorn (Rama V).
November
Main article: November 1910
November 7 – The first air flight for the purpose of delivering commercial freight takes place in the United States. The flight, made by Wright brothers pilot Philip Parmalee, is between Dayton and Columbus, Ohio.
November 14 – In the first takeoff from a ship by a fixed-wing aircraft, Eugene Ely takes off from a temporary platform erected over the bow of the light cruiser USS Birmingham in Hampton Roads, Virginia.
November 20 – Mexican Revolution: Francisco I. Madero proclaims the elections of 1910 null and void, and calls for an armed revolution at 6 p.m. against the illegitimate presidency/dictatorship of Porfirio Díaz.
December
Main article: December 1910
Late December – A form of pneumonic plague spreads through northeastern China, killing more than 40,000