| January 1 | Grossdeutsche Volksgemeinschaft/Volkische Block replaces NSDAP |
| January 3 | British egyptologist Howard Carter finds sarcophagus of Tutankhamun |
| January 6 | Poulenc/Nijinska's ballet "Les Biches," premieres in Monte Carlo |
| January 12 | History of Science Society organized at Boston |
| January 13 | Nationalist Wafd-party wins Egyptian parliament elections |
| January 14 | Allies direct Fiume (Rijeka) in Italy |
| January 15 | 3rd Dutch government Ruijs de Beerenbrouck forms |
| January 22 | Baldwin government resigns in England |
| January 22 | Dutch Blast Furnace and Steel Factory opens |
| January 22 | KGO-AM in San Francisco, California begins radio transmissions |
| January 23 | Ramsey MacDonald forms 1st Labour government in Britain |
| January 24 | Mussolini disallows non-fascists work union |
| January 24 | Russian city of St. Petersburg renamed Leningrad |
| January 25 | 1st Winter Olympic games open in Chamonix, France |
| January 26 | Charles Jewtraw, U.S. 500m skater, takes 1st Winter Olympics gold medal |
| January 27 | Egyptian king Foead nominates Saad Zaghloel Pasja premier |
| January 27 | Lenin placed in Mausoleum in Red Square |
| January 29 | Ice cream cone rolling machine patented by Carl Taylor, Cleveland |
| January 30 | Ponsford scores second 110 of the game in Vic win over NSW |
| February 1 | Amsterdam's Netherlands Press Museum opens |
| February 1 | New British MacDonald government recognizes U.S.S.R. |
| February 1 | Soccer team VSV Tonido forms in Voorburg |
| February 1 | Soviet Union formally recognized by Britain |
| February 2 | International Ski Federation (FIS) forms |
| February 3 | Alexei Ryko elected as President of People's commission (succeeds Lenin) |
| February 4 | 1st Winter Olympic games close at Chamonix France |
| February 4 | George Kelly's "Show-Off," premieres in New York City |
| February 7 | Mussolini government exchanges diplomats with U.S.S.R. |
| February 8 | 1st coast-to-coast radio hookup: General John Joseph Carty speech in Chicago |
| February 9 | Nakhichevan ASSR constituted within Azerbaijan SSR |
| February 10 | Bucky Harris, 27, becomes youngest baseball manager (Washington Senators) |
| February 12 | George Gershwin's "Rhapsody In Blue" premieres at Carnegie Hall (New York City) |
| February 12 | George Kaufman's "Beggar on Horseback," premieres in New York City |
| February 13 | King Tut's tomb opened |
| February 14 | IBM Corporation founded by Thomas Watson |
| February 17 | Johnny Weissmuller sets 100-yard freestyle record (52.4 seconds) |
| February 18 | U.S. Female Figure Skating championship won by Theresa Weld Blanchard |
| February 18 | U.S. Male Figure Skating championship won by Sherwin Badger |
| February 24 | Greek parliament proclaims republic |
| February 24 | Johnny Weissmuller, swims 100m record (57 2/5 seconds) |
| February 24 | Mahatma Gandhi released from jail |
| February 25 | Marie Boyd scores 156 points in Maryland High School basketball game (163-3) |
| February 26 | Trial against Hitler in Munich begins |
| February 27 | Belgium's Theunis government falls |
| February 28 | U.S. begins intervention in Honduras |
| March 1 | Germany's prohibition of Communist Party KPD lifted |
| March 3 | German and Turkish friendship/trade treaty signed |
| March 3 | Sean O'Casey's "Juno and the Paycock," premieres in Dublin |
| March 4 | "Happy Birthday To You" published by Claydon Sunny |
| March 5 | Computing-Tabulating-Recording Corp becomes IBM |
| March 5 | Frank Carauna, becomes 1st to bowl 2 successive perfect 300 games |
| March 5 | King Hussein of Hedzjaz appoints himself kalief |
| March 6 | British Labour government cuts military budget |
| March 8 | Coal mine explosion kills 171 at Castle Gate Utah |
| March 9 | South Slavia aproves Italy's annexation of Fiume (Rijeka) |
| March 11 | 3rd term of Belgium Theunis government begins |
| March 11 | Eden Phillpotts' "Farmer's Wife," premieres in London |
| March 11 | NHL Championship: Montreal Canadiens sweeps Ottawa Senators in 2 games |
| March 13 | German Republic day |
| March 17 | Eugene O'Neill's "Welded," premieres in New York City |
| March 17 | Netherlands and U.S.S.R. begin talks over U.S.S.R. recognition |
| March 17 | Sweden and U.S.S.R. exchange diplomats |
| March 20 | Finnair begins scheduled flight of Helsinki-Tallinn |
| March 20 | Stanley Cup: Mont Canadiens (NHL) sweep Vanc Millionaires (PCHA) in 2 |
| March 21 | 1st foreign language course broadcast on U.S. radio (WJZ, New York City) |
| March 21 | Mass Investors Trust becomes 1st mutual fund set up in US |
| March 24 | Greece becomes a republic |
| March 25 | Greek parliament selects Admiral Paul Koundouriotis as premier |
| March 25 | Stanley Cup: Mont Canadiens (NHL) sweep Calgary Tigers (WCHL) in 2 |
| March 26 | Premiere of Bernard Shaw's "Saint Joan," in London |
| March 27 | Canada recognizes U.S.S.R. |
| March 27 | New French government of Poincare begins |
| March 28 | WGN-AM in Chicago, Illinois begins radio transmissions |
| March 29 | Bayern and Vatican reach accord |
| March 31 | Croydon Airport: 1st British mig aircraft Imperial established |
| March 31 | London public transport strike ends |
| April 1 | Crown takes over Northern Rhodesia from British South Africa Co |
| April 1 | Hitler sentenced to 5 years labor but General Ludendorff acquitted |
| April 1 | Imperial Airways forms in Britain |
| April 6 | 4 planes leave Seattle on 1st successful around-the-world flight |
| April 6 | Italy fascists receives 65% of vote of parliament |
| April 6 | Volkische Block (Nazi's) receives 17.8% of vote in Bayern |
| April 10 | Tubular steel golf club shafts approved for championship play |
| April 11 | 1st men's college swimming championships begin |
| April 11 | Socialists win Denmark's parliamentary elections |
| April 11 | WLS-AM in Chicago, Illinois begins radio transmissions |
| April 13 | Greek plebiscite for a republic |
| April 15 | Flemish-Walloon riots in Louvain Belgium, 1 dead |
| April 15 | WHO-AM in Des Moines Iowa begins radio transmissions |
| April 16 | 1st radio-transmission of wireless: Matthaus Passion |
| April 16 | Child labor laws strengthened in Holland |
| April 17 | Metro Pictures, Goldwyn Pictures and Louis B. Mayer merged to form MGM |
| April 18 | 1st crossword puzzle book published (Simon and Schuster) |
| April 19 | 28th Boston Marathon won by Clarence DeMar of Mass in 2:29:40.2 |
| April 19 | "National Barn Dance" premieres on WLS Chicago |
| April 22 | Hague Chambers of Commerce forms |
| April 23 | British Empire Exhibition opens at Wembley |
| April 27 | Antwerp soccer tie Belgium-Netherlands 1-1 |
| April 28 | 119 die in Benwood West Virginia coal mine disaster |
| May 1 | Admiral Paul Koundouriotis becomes president of Greece |
| May 2 | Netherlands refuses to recognize U.S.S.R. |
| May 4 | 8th Olympic games open at Paris, France |
| May 4 | German Republic election fascists and communists win |
| May 5 | Unions terminate Twentse textile strike |
| May 7 | Peruvian Torre forms APRA, Alianza Popular Revolutionaria Americana |
| May 8 | Arthur Honegger's "Pacifica 231," premieres |
| May 8 | Memel territories given to Lithuania |
| May 8 | Workers at Werkspoor in Amsterdam strike against 3rd wage cut |
| May 10 | J. Edgar Hoover appointed head of FBI |
| May 11 | Cartel des Gauches wins French parliamentary election |
| May 11 | Pulitzer Prize awarded to Robert Frost (New Hampshire) |
| May 12 | 50th Preakness: John Merimee aboard Nellie Morse wins in 1:57.2 |
| May 12 | 7th PGA Championship: Walter Hagen at French Lick CC Ind |
| May 16 | 108 degrees F (42 degrees C) in Blitzen Oregon |
| May 17 | 50th Kentucky Derby: John Mooney aboard Black Gold wins in 2:05.2 |
| May 21 | Leopold and Loeb kidnap Bobby Franks for fun |
| May 22 | In Chicago, Nathan Leopold and Richard Loeb kidnap Robert Franks |
| May 26 | German government of Marx resigns |
| May 26 | President Coolidge signs Immigration law: restricting immigration |
| May 30 | Socialist Matteotti falls in Italian parliament by fascists |
| June 2 | Snyder Act: U.S. citizenship granted to all American Indians |
| June 3 | Gila Wilderness Area established by Forest Service |
| June 6 | 28th U.S. Golf Open: Cyril Walker shoots a 297 at Oakland Hills CC Michigan |
| June 7 | 56th Belmont: Earl Sande aboard Mad Play wins in 2:18.8 |
| June 7 | George Leigh-Mallory disappears 775' from Everest's summit |
| June 9 | "Jelly-Roll Blues," is recorded by blues great, Jelly Roll Morton |
| June 10 | 1st political convention broadcast on radio - Republicans at Cleveland |
| June 11 | Bene Brak Palestine founded |
| June 11 | Koos Vorrink elected President of AJC |
| June 13 | Bene Berak Palestine founded |
| June 13 | Gaston Doumergue elected as 1st protestant French premier |
| June 13 | Yankees win by forfeit over Tigers, their 3rd forfeit win |
| June 14 | Test Cricket debuts of Herbert Sutcliffe and Maurice Tate vs. South Africa |
| June 14 | WOKO-AM radio begins transmitting from Albany NY |
| June 15 | 1st transmission of radio Bloemendaal |
| June 15 | Ford Motor Company manufactures its 10 millionth Model T automobile |
| June 15 | J. Edgar Hoover assumed leadership of the FBI |
| June 15 | Native Americans are proclaimed U.S. citizens |
| June 16 | South Africa all out 30 vs. England in 48 minutes, Gilligan 6-7 |
| June 18 | Pope Pius XI's encyclical Maximam gravissimamque |
| June 19 | Paavo Nurmi runs world record 1500m (3:52.6) |
| June 21 | NCRV, Dutch Christian Radio Society, forms |
| June 23 | 8 month Twenste textile strike ends |
| June 24 | 59th British Golf Open: Walter Hagen shoots a 301 at Hoylake Hoylake |
| June 26 | After 8 years of occupation, U.S. troops leave Dominican Republic |
| June 26 | Ziegfeld Follies opens on Broadway |
| June 28 | Test cricket ump debut for Frank Chester, vs. South Africa at Lord's |
| June 28 | Tornado strikes Sandusky Ohio and Lorain Ohio, killing 93 |
| June 30 | England score 2-503 in day's play vs. South Africa at Lord's |
| July 1 | Light Brigade forms |
| July 1 | Through regular transcontinental airmail service forms, New York City-SF |
| July 5 | Military revolt in Sao Paulo Brazil |
| July 6 | 1st photo sent experimentally across Atlantic by radio, U.S. - England |
| July 7 | Robert LeGendre of U.S., sets then long jump record at 25' 5 " |
| July 10 | Denmark takes Greenland as Norway ends claim |
| July 10 | Railroad worker strike ends in Amsterdam |
| July 11 | Moslem-Hindu rebellion in Delhi |
| July 13 | Albin Stenroos wins Olympic marathon (2:41:22.6) |
| July 16 | Conference over German recovery payments begins in London |
| July 16 | New York Giants George Kelly is 1st to hit home runs in 6 cons games |
| July 17 | St. Louis Card Jesse Haines no-hits Boston Braves, 5-0 |
| July 18 | KPD points out Rote Frontkampferbund against Nazi |
| July 20 | Federation Internationale des Echecs (FIDE) forms in Paris |
| July 27 | 8th Olympic games closes in Paris |
| July 29 | Paul Runyan wins PGA golf championship |
| August 2 | Joe Hauser sets record of 14 total bases in a game |
| August 3 | Cyclist Piet Moeskops regains world sprint championist |
| August 5 | Comic strip "Little Orphan Annie," by Harold Gray, debuts |
| August 8 | British-Russian trade agreement signed |
| August 11 | 1st newsreel pictures of presidential candidates were taken |
| August 16 | 38th U.S. Womens Tennis: Helen Wills Moody beats Molla B Mallory (61 63) |
| August 16 | Conference about German recovery payments opens in London |
| August 16 | Dutch-Turkish peace treaty signed |
| August 17 | French-German trade agreement signed |
| August 18 | France begins retracting troops out of Ruhrgebied |
| August 23 | Mars' closest approach to Earth since 10th century |
| August 25 | International maritime treaty drawn |
| August 25 | Washington Senator Walter Johnson 2nd no-hitter beats Browns, 2-0 in 7 innings |
| August 29 | German Republic day accepts Dawes plan |
| August 31 | Paavo Nurmi runs world record 10,000m (30:06.2) |
| September 1 | Kenchoji Rinzai temple in Kamakur Japan, heavily damaged by earthquake |
| September 2 | 44th U.S. Mens Tennis: William Tilden beats William Johnston (61 97 62) |
| September 2 | Rudolf Friml's "Rose Marie" opens to rave reviews in New York City |
| September 3 | Civil war breaks out in China, General Tsi moves to Shanghai |
| September 3 | L Stallings and M Anderson's "What Price Glory?," premieres in New York City |
| September 6 | Assassination attempt on Mussolini fails |
| September 6 | Charles Paddock captures 100 and 200 yd AAU national senior outdoor track and field championships |
| September 8 | Alexandra Kollontai of Russia becomes 1st woman ambassador |
| September 10 | Giants rip Braves 22-1, Frisch goes 6-for-6 before grounding out |
| September 10 | Leopold and Loeb found guilty of murder |
| September 13 | 19th Davis Cup: USA beats Australia in Philadelphia (5-0) |
| September 14 | Walter Johnson elected AL MVP |
| September 16 | Cardinal Jim Bottomley bats in 12 RBIs in 1 game |
| September 17 | Italy signs treaty of Rapallo |
| September 18 | Government routes 7 Provinces to Peking |
| September 20 | Carl Mays is 1st pitcher to win 20 games seasons for 3 different teams |
| September 20 | Cub's Grover Cleveland Alexander beats New York Giants to win 300th game |
| September 24 | Boston, Massachusetts opens its airport |
| September 25 | Malcolm Campbell sets world auto speed record at 146.16 MPH |
| September 27 | Giants clinch their 4th straight pennant, beating Phils 5-1 |
| September 28 | 2 U.S. Army planes end around-world flight, Seattle to Seattle, 57 stops |
| September 28 | French government names General Serrail Governor-General of Syria |
| September 28 | General Plutarco Calles elected president of Mexico |
| September 29 | Santo Domingo joins League of Nations |
| September 29 | Senators clinch pennant, finishing 2 games in front of Yankees |
| September 30 | Allies stop checking on German navy |
| October 1 | Fokker F-7 1st flight (Amsterdam to Batavia) |
| October 1 | Landis bans Giants Jimmy O'Connell and Cozy Dolan from World Series after they admit an attempt to bribe Phils shortstop Heinie Sand |
| October 1 | Paavo Nurmi runs world record 4 mile (19:15.4) and 5 mile (24:06.2) |
| October 2 | League of Nations approves protocols of Geneva |
| October 3 | King Hussein of Hedzjaz abdicts throne |
| October 4 | New York Giants become 1st team to appear in 4 consecutive World Series |
| October 5 | 1st Little Orphan Annie-strip appears in New York City Daily News |
| October 7 | 160 consecutive days of 100 degrees at Marble Bar, Australia begins |
| October 7 | Greek government of Dikalekopoulis, forms |
| October 8 | British Labour government of MacDonald falls to Communists |
| October 10 | Ibn Saud of Nedzhed captures Mecca |
| October 10 | Washington Senators win their 1st World Series beat Giants in 7 |
| October 12 | Sokolnicheskaya Radio begins broadcasting from Moscow |
| October 13 | Wahhabietes under Ibn Saudi take Mecca |
| October 14 | Arnold Schonbergs opera "Die Gluckliche Hand," premieres in Vienna |
| October 15 | President Coolidge declares Statue of Liberty a national monument |
| October 18 | Harold "Red" Grange, finest collegiate football game (4 long TD runs) |
| October 18 | Notre Dame beats Army 13-7, New York Hearld Tribune dubs them (4 Horsemen) |
| October 19 | General Christian Worker's union demands 8 hour work day in Belgium |
| October 21 | KLM Fokker's F7 H-NACC departs to Dutch East Indies |
| October 24 | Christian General Feng Joe Siang occupies Beijing |
| October 24 | Nobel prize for fysiologie/medicine awarded to W Einthoven |
| October 25 | "Little Orphan Annie" comic strip 1st published |
| October 27 | Uzbek SSR forms |
| October 28 | French-Russian trade agreement signed |
| October 28 | White Sox beat New York Giants 8-4 in Dublin, less than 20 fans attend |
| October 29 | "Dixie to Broadway," opens at Broadhurst Theater |
| October 29 | Labour loses British parliamentary election |
| November 1 | 1st U.S. NHL franchise, Boston Bruins founded |
| November 1 | Forest Peters of Montana State University hits 17 of 22 attempted field goals |
| November 2 | Sunday Express publishes 1st British crossword puzzle |
| November 4 | British Labour government of MacDonald, resigns |
| November 4 | California legalizes pro boxing (illegal since 1914) |
| November 4 | Nellie Tayloe Ross elected 1st U.S. female Governor (Wyoming) |
| November 4 | U.S. president Calvin Coolidge re-elected |
| November 6 | Stanley Baldwin becomes Prime Minister of England |
| November 8 | Austria chancellor Ignaz Seipel, resigns after assassination attempt |
| November 8 | Fortune Theatre opens in London |
| November 9 | Miriam (Ma) Ferguson becomes 1st elected woman governor (of Texas) |
| November 11 | Martin Beck Theater opens at 302 W 45th St. New York City |
| November 11 | Palace of Legion of Honor dedicated (SF) |
| November 12 | Yeshivah Slobodka opens a branch in Chevron |
| November 15 | Dutch Christian Radio Society (NCRV) forms |
| November 16 | Cleveland Bulldogs lose to Frankford Yellowjackets, ends 31-game undefeated streak (NFL and major-league football record) |
| November 21 | British premier Baldwin cancels Labor contract with U.S.S.R. |
| November 22 | England orders Egyptians out of Sudan |
| November 24 | 1st Dutch airplane (Fokker's F-7) reaches Batavia (Java) |
| November 26 | Mongolian People's Republic proclaimed |
| November 27 | 57,000 watch a High School football game (LA and Polytechnic tie 7-7) |
| November 28 | Pieter Jelle Troelstra leaves 2nd Chamber |
| November 29 | 12th CFL Grey Cup: Queen's University defeat Toronto Balmy Beach, 11-3 |
| November 29 | NHL's Montreal Forum opens |
| November 30 | 1st photo facsimile transmitted across Atlantic by radio (London-NYC) |
| November 30 | Last French/Belgian troops leave Ruhrgebied |
| December 1 | Calles becomes president of Mexico |
| December 1 | George/Ira Gershwin's musical "Lady Be Good," premieres in New York City |
| December 2 | British-German trade agreement signed |
| December 5 | Hamilton Tiger Red Green scores 5 goals to beat Tor Maple Leafs 10-5 |
| December 7 | German election (Social Democrats win/Nazis and Communists lose) |
| December 9 | Dutch and Hungary trade treaty signed |
| December 9 | Michael Hainisch re-elected Austrian president |
| December 10 | Aggrement reached on permanent rotation of World Series with each league, getting games 1, 2, 6, 7 in alternating years |
| December 10 | Willem Einthoven awarded Nobel for medicine |
| December 13 | KOA-AM in Denver CO begins radio transmissions |
| December 14 | Chiang Kai-shek occupies Hankou |
| December 14 | Respighi's symphony "Pini di Roma," premieres in Paris |
| December 16 | Noel Coward's "Vortex," premieres in London |
| December 17 | 1st U.S. diesel electric locomotive enters service, Bronx, New York |
| December 19 | Test Cricket debut of Bill Ponsford, who scored 110 in 1st innings |
| December 20 | Adolf Hitler freed from jail early |
| December 22 | Babe Dye of NHL's Toronto St. Patricks scores 5 goals beat Bruins 10-2 |
| December 22 | Philip Barry's "Youngest," premieres in New York City |
| December 24 | 1st radio transmission of NCRV in Netherlands |
| December 24 | Albania becomes a republic (ex-premier Ahmed Zogoe's coup) |
| December 24 | Richard Rodgers Theater (46th St. Chanin's) opens at 226 W 46th New York City |
| December 24 | School in Babb's Switch, Oklahoma catches fire, 36 die |
| December 26 | Judy Garland, 2, billed as Baby Frances, show business debut |
| December 30 | Edwin Hubble announces existence of other galactic systems |
| December 31 | Hubble announces existence of distant galaxies |
