| January 1 | 1st running of San Francisco's famed "Bay to Breakers" race, 7.63 miles / 12.3 km |
| January 1 | Sun Yat-sen forms Chinese Republic |
| January 3 | South Pacific RR offers to bring Liberty Bell to Exposition, free |
| January 4 | Smallest earth-moon distance this century, 356,375 km center-to-ctr |
| January 5 | 1st National Hockey Association game (Victoria) |
| January 6 | New Mexico becomes 47th state |
| January 9 | U.S. Marines invade Honduras |
| January 10 | Caillaux government in France resigns |
| January 10 | World's 1st flying boat's maiden flight, (Glenn Curtiss in New York) |
| January 12 | -47 degrees F (-44 degrees C), Washta, Iowa (state record) |
| January 13 | -40 degrees F (-40 degrees C), Oakland, Maryland (state record) |
| January 14 | Raymond Poincare becomes premier of France |
| January 17 | Robert Scott expedition arrives at South Pole, 1 month after Amundsen |
| January 18 | English explorer Robert F Scott and his expedition reach South Pole, only to discover that Roald Amundsen had gotten there before |
| January 29 | Martial law declared in textile strike in Lawrence, MA |
| February 2 | Frederick R Law, parachutes from Statue of Liberty (stunt for Pathe) |
| February 7 | 2nd Dutch 11 city skate (Coen de Koenig wins (11:40) |
| February 8 | 1st eastbound U.S. transcontinental flight lands in Jacksonville, Fla |
| February 9 | U.S. Tennis Association amends rule taking bye away from defending champion |
| February 10 | Hobbs and Rhodes make 323 cricket opening stand vs. Australia at MCG |
| February 12 | China adopts Gregorian calendar |
| February 12 | Last Ch'ing (Manchu) emperor of China, Hsuan T'ung, abdicates |
| February 13 | England regains cricket's Ashes |
| February 14 | 1st U.S. submarines with diesel engines commissioned, Groton, Connecticut |
| February 14 | Arizona was admitted to the Union as the 48th state |
| February 15 | Fram reaches latitude 78 degrees 41' S, farthest south ever by ship |
| February 16 | VSV soccer team forms in Ijmuiden |
| February 20 | Argentina beat the MCC in their inaugural cricket 1st-class fixture |
| February 22 | J. Vedrines makes 1st airplane flight over 100 mph - 161.29 kph |
| February 26 | Coal miners strike in England (settle on 03/01) |
| February 27 | Lord Kitchener opens Khartoum-El Obeid (Nyala) railway |
| February 28 | Victor Trumper's last Test Cricket innings c Woolley b Barnes 50 |
| March 1 | Albert Berry makes 1st parachute jump from an airplane |
| March 1 | Isabella Goodwin, 1st U.S. woman detective, appointed, New York City |
| March 5 | Spanish steamer "Principe de Asturias" sinks NE of Spain, 500 die |
| March 7 | Roald Amundsen announces discovery of the South Pole |
| March 11 | 1st Stanley Cup game to be played in 3 20-minute periods, formerly played in 30-minute halfs, Quebec beats Moncton 9-3 on way to sweep |
| March 12 | Captain Albert Berry performs 1st parachute jump from an airplane |
| March 12 | Girl Guides (Girl Scouts) forms in Savannah, by Juliette Gordon Low |
| March 12 | Helen Hayes Theater opens at 238 W 44th St. New York City |
| March 13 | Stanley Cup: Quebec Bulldogs sweep Moncton (NB) in 2 games |
| March 14 | King Vittorio Emanuel III of Rome injured during assassination attempt |
| March 15 | Pitcher Cy Young retires from baseball with 511 wins |
| March 16 | Mrs. William Howard Taft plants 1st cherry tree in Washington D.C. |
| March 17 | Camp Fire Girls organization announced by Mrs. Luther Halsey Gulick |
| March 23 | Dixie Cup invented |
| March 27 | 1st Japanese cherry blossom trees planted in Washington D.C. |
| March 29 | Captain Robert Scott, storm-bound in a tent near South Pole, makes last entry in his diary "the end cannot be far" |
| March 30 | French protectorate in Morocco established |
| April 2 | Sun Yet Sen forms Guomindang-Party in China |
| April 2 | Titanic undergoes sea trials under its own power |
| April 4 | Army fires on striking mine workers at Lena-gold fields Siberia |
| April 4 | Chinese republic proclaimed in Tibet |
| April 6 | Electric starter 1st appeared in cars |
| April 8 | Steamers collide in Nile, drowning 200 |
| April 9 | 1st exhibition baseball game at Fenway Park (Red Sox vs. Harvard) |
| April 9 | Titanic leaves Queenstown, Ireland for New York |
| April 10 | RMS Titanic sets sail for its 1st and last voyage |
| April 11 | Cornerstone of Technion in Haifa Palestine laid |
| April 13 | Royal Flying Corps forms (later RAF) |
| April 14 | Pan American Union forms |
| April 15 | Titanic sinks at 2:27 AM off Newfoundland as band plays on |
| April 16 | Harriet Quimby becomes 1st woman pilot to cross English Channel |
| April 16 | Pirates turn a rare 5-3-7 doubleplay (left fielder covers 2nd base) |
| April 17 | 1st unofficial gold record (Al Jolson's "Ragging The Baby To Sleep") |
| April 19 | 16th Boston Marathon won by Mike Ryan of New York in 2:21:18.2 |
| April 20 | Fenway Park officially opens, Red Sox beat New York Highlanders 7-6 in 11 |
| April 20 | Tiger Stadium in Detroit opens, Tigers beat Cleveland Indians 6-5 |
| April 26 | 1st homerun hit at Fenway Park (Hugh Bradley, Red Sox) |
| April 27 | Relief laws replaces those of 1854, in Netherlands |
| April 29 | 108 degrees F (42 degrees C), Tuguegarao, Philippines (Oceania record) |
| April 29 | Frank Wedekind's "Tod und Teufel," premieres in Berlin |
| May 1 | Amsterdam-North soccer team DWV forms |
| May 1 | Beverly Hills Hotel opens |
| May 4 | Italian mariners occupy Turkish Island of Rhodes |
| May 5 | 5th Olympic games open at Stockholm, Sweden |
| May 5 | Soviet Communist Party newspaper Pravda begins publishing (4/22 OS) |
| May 7 | Columbia University approves plans for awarding the Pulitzer Prize in several categories The award is established by Joseph Pulitzer |
| May 11 | 38th Kentucky Derby: Carol H Shilling aboard Worth wins in 2:09.4 |
| May 13 | Royal Flying Corps forms in England |
| May 15 | 37th Preakness: Clarnence Turner on Colonel Holloway wins in 1:56.6 |
| May 15 | Ty Cobb rushes a heckler at a New York Highlander game and is suspended |
| May 18 | A's beat Tigers 24-2, who use amateurs protesting Ty Cobbs suspension |
| May 18 | Maurits Binger establishes 2 Dutch movie companies |
| May 19 | AL President Ban Johnson tells Tigers if they continue protest of Ty Cobb's suspension, they will be banned from baseball |
| May 28 | Jackie Matthews takes 2 cricket hat-tricks same day Australia vs. South Africa |
| May 29 | 15 young women fired by Curtis Publishing for dancing "Turkey Trot" during their lunch break |
| May 30 | U.S. Marines sent to Nicaragua |
| May 31 | U.S. Marines land on Cuba |
| June 1 | Stormvogels soccer team forms in Ijmuiden |
| June 4 | Cone of Mount Katmai (Alaska) collapses |
| June 4 | Massachusetts passes 1st U.S. minimum wage law |
| June 5 | U.S. Marines invade Cuba, 3nd time |
| June 7 | St. Pius X encyclical "On Indians of South America" |
| June 7 | U.S. Army tests 1st machine gun mounted on a plane |
| June 13 | Albert Berry made the 1st parachute jump from an airplane |
| June 13 | New York Giant Christy Mathewson wins his 300th game |
| June 15 | 26th U.S. Womens Tennis: Mary K Browne beats Eleonora Sears (64 62) |
| June 19 | Tennessee University opened as Tennessee A and L State College |
| June 20 | New York Giant Josh Devore steals 4 bases in an inning (2nd and 3rd twice) |
| June 20 | New York Giants lead Bost Braves 14-2 into 9th, Giants win 21-12 |
| June 26 | Gustav Mahlers 9th Symphony premieres in Vienna |
| July 3 | New York Giant pitcher Rube Marquard ties record of 19 game win-streak |
| July 4 | Detroit Tiger George Mullen no-hits St. Louis Browns, 7-0 |
| July 4 | Jack Johnson TKOs Jim Flynn in 9 for heavyweight boxing title |
| July 6 | 5th Olympic games in Stockholm opens |
| July 6 | Donald Lippincott runs world record 100m (10.6) |
| July 8 | G E V Crutchley (Oxford) 99 retired measles vs. Cambridge |
| July 8 | Giants Rube Marquard loses after winning 21 straight |
| July 10 | Hannes Kolehmainen runs world record 5000m (14:36.6) |
| July 12 | 1st foreign feature film exhibited in U.S. - "Queen Elizabeth" - New York City |
| July 14 | Kenneth McArthur runs Olympic record marathon (2:36:54.8) |
| July 15 | British National Health Insurance Act goes into effect |
| July 16 | Naval torpedo launched from an airplane patents by B. A. Fiske |
| July 17 | IAF (International Amateur Athletic Federation) forms in Sweden |
| July 18 | Chicago Cubs get 21 hits but lose to Philadelphia Phillies in 11 innings |
| July 20 | Phillies Sherry Magee steals home twice in 1 game |
| July 22 | 5th Olympic games in Stockholm closes |
| July 25 | Comoros proclaimed a French colonies |
| July 31 | RBC soccer team forms in Roosendaal |
| July 31 | U.S. government prohibits movies and photos of prize fights |
| August 2 | 18th U.S. Golf Open: John McDermott shoots a 294 at CC of Buffalo NY |
| August 7 | Progressive (Bull Moose) Party nominates Theodore Roosevelt for president |
| August 14 | 2,500 U.S. Marines invade Nicaragua; U.S. remains until 1925 |
| August 15 | Yankee Guy Zinn sets record by stealing home twice in a game |
| August 19 | Percy Aldridge Grainger's "Shepherd's Key," premieres |
| August 20 | Plant Quarantine Act goes into effect |
| August 20 | Washington Senator Carl Cushion no-hits Cleveland Indians, 2-0 in 6 innings |
| August 21 | Mr. Carter-Cotton chosen 1st chancellor of University of British Columbia |
| August 22 | England defeat Australia to win the Triangular Tournament |
| August 22 | Richard Catling, commissioner of police (Kenya) |
| August 24 | New York City ticker tape parade for Jim Thorpe and victorious U.S. olympians |
| August 24 | Territory of Alaska organizes |
| August 24 | U.S. passes Anti-gag law, federal employees right to petition government |
| August 25 | 1st time an aircraft recovers from a spin |
| August 25 | Different nationalities battle with each other in Macedonia |
| August 26 | 32nd U.S. Mens Tennis: M E McLoughlin beats W F Johnson (36 26 62 64 62) |
| August 26 | Walter Johnson's 16-game winning streak ends |
| August 27 | Edgar Rice Burroughs' publishes "Tarzan of the Apes" |
| August 30 | St. Louis Brown Earl Hamilton no-hits Detroit Tigers, 5-1 |
| September 3 | Arnold Schoenberg's "Funf Orchesterstucke," premieres |
| September 3 | World's 1st cannery opens in England to supply food to the navy |
| September 4 | 1st accident (collision) in Londoner Underground: 22 injured person |
| September 6 | New York Giant Jeff Tesreau no-hits Philadelphia, 3-0 |
| September 7 | Eddie Collins steals record 6 bases in 9-7 Athletics win over Detroit |
| September 9 | J Verdrines becomes 1st to fly over 100 mph (107 mph/172 kph) |
| September 11 | Netherland Olympic Committee forms |
| September 11 | Philadelphia A's Eddie Collins steals 6 bases in 1 game |
| September 12 | Dutch Olympian Committee forms (NOC) |
| September 15 | Red Sox pitcher Joe Wood ties then record of 16 straight wins |
| September 15 | War between Turkey and Montenegro breaks out in Albania |
| September 17 | Center fielder Casey Stengel breaks in with Brooklyn and hits 4 singles |
| September 19 | Pius X encyclical Singular quadam, against interconfess unions |
| September 19 | Soccer team NAC (Noad Advendo Combination) forms in Breda |
| September 22 | Eddie Collins repeats record of stealing 6 bases in a game (9/7/12) |
| September 23 | 1st Mack Sennett "Keystone Comedy" movie released |
| September 23 | Mark Sennet presents 1st Keystone Cops film (Cohen Collects a Debt) |
| September 27 | W C Handy publishes "Memphis Blues" 1st Blues Song, 1912 |
| September 28 | "Kiche Maru" sinks off Japan, killing 1,000 |
| September 28 | SS Kichemaru disappears in storm off Japanese coast, 1,000 die |
| September 29 | French/British troops lands on Samoa |
| October 1 | Yankees lose game #100 en route to a 50-102 season |
| October 5 | Billy Mallett of Hamilton Tigers kicks 9 singles in a game |
| October 5 | Red Sox defeat A's 3-0 for then AL record 105th win |
| October 5 | Yankees win final game at Hilltop stadium |
| October 6 | Pirates Owen "Chief" Wilson hits record 36th triple of season |
| October 8 | 1st Balkan War begins - Montenegro declares war on Turkey |
| October 8 | Montenegro declares war on Turkey, beginning 1st Balkan War |
| October 14 | Bull Moose Teddy Roosevelt shot while campaigning in Milwaukee |
| October 15 | Red Sox Tris Speaker's makes only world series unassisted double play, from the outfield |
| October 16 | Arnold Schonberg's "Pierrot Lunaire," premieres |
| October 16 | Boston beats New York Giants, 4 games to 3 with a tie in 9th World Series |
| October 17 | Bulgaria, Greece and Serbia declares war on Turkey |
| October 18 | Beginning of 1st Balkan War |
| October 18 | Italo-Turkish war ends |
| October 19 | Tripoli (Libya) passes from Turkish to Italian control |
| October 20 | Cort Theater opens at 148 W 48th St. New York City |
| October 20 | Hannes Kolehmainen runs world record marathon (2:29:39.2) |
| October 26 | Serbian troops over run Skopje (Uskup) |
| October 26 | Woolwich Tunnel under Thames opens |
| November 5 | Arizona, Kansas and Wisconsin vote for female suffrage |
| November 5 | Bulgarian troops in Constantinople blockade drinking water |
| November 5 | Woodrow Wilson (D) defeats Theodore Roosevelt (Prog) and President Taft (R) |
| November 9 | Ferenc Moln rs "Farkas," premieres in Budapest |
| November 12 | Robert Scott's diary and dead body found in Antarctica |
| November 18 | Albania declares independence from Turkey |
| November 23 | Hamilton Alerts suspended by ORFU for refusing to field a full team in a replay of a protested game |
| November 25 | American College of Surgeons incorporates in Springield, Ill |
| November 25 | Socialist International rejects that world war is coming |
| November 27 | Albanian National Flag adopted |
| November 27 | Spanish protectorate in Morocco forms |
| November 28 | Albania declares it's Indepenence from Turkey |
| November 30 | 4th CFL Grey Cup: Hamilton Alerts defeats Toronto Argonauts, 11-4 |
| December 3 | Gerrit Brinkman becomes 1st Dutch traffic officer |
| December 3 | Turkey, Serbia, Montenegro, Greece and Bulgaria sign weapons pact |
| December 6 | China votes for universal human rights |
| December 7 | Bust of Queen Nefertete found in El-Amarna, Egypt |
| December 12 | R Friml/O Harbachs musical "Firefly," premieres in New York City |
| December 16 | 1st U.S. postage stamp picturing an airplane, 20 cent parcel post, issued |
| December 16 | Austria-Hungary engage in conflict with Serbia |
| December 20 | J Hartley Manners' "Peg O' My Heart," premieres in New York City |
| December 20 | Paul Claudels "L'Annonce Faote Maroe," premieres in Paris |
| December 21 | Denmark, Norway and Sweden declare neutrality in Comende war |
| December 23 | 1st "Keystone Kops" film, titled "Hoffmeyer's Legacy" |
| December 23 | Aswan Dam in Nile begins operation |
| December 24 | Irving Fisher patents archiving system with index cards |
| December 28 | National Council of Young Israel convenes |
| December 28 | SF Municipal Railway starts operation at Geary St. (MUNI) |
