| 1900 |
1901 |
1902 |
1903 |
1904 |
1905 |
1906 |
1907 |
1908 |
1909 |
1910 |
1911 |
1912 |
1913 |
1914 |
1915 |
1916 |
1917 |
1918 |
1919 |
1920 |
1921 |
1922 |
1923 |
1924 |
 William McKinley |
USA:
Theodore Roosevelt (President) |
USA:
William H. Taft (Pres.)
|
USA:
Woodrow Wilson (Pres.)
|
USA:
Warren Harding (Pres.) |
USA:
Calvin Coolidge (Pres.)
|
| Melville
Fuller (Chief Justice of the Supreme Court) |
Melville
Fuller (Chief Justice) |
William
H. Taft (Chief Justice) |
| David
Henderson (Speaker of the House) |
Joseph
Cannon (Speaker of the House) |
Champ
Clark (Speaker of the House) |
Frederick
Gillett (Speaker of the House) |
 UK:
Queen Victoria |
UK: King _Edward_ VII |
UK: _George_ V |
|
Marquess of Salisbury |
UK:
Arthur James Balfour |
UK:
Henry Campbell-Bannerman |
UK: Herbert Asquith |
UK:
David _Lloyd George |
Andrew _Bonar Law |
Stanley Baldwin |
Ramsay Macdonald |
Canada: Wilfred Laurier |
Canada:
Robert Borden |
Arthur Meighen |
Canada:
William Lyons Mackenzie King |
|
 Australia:
Edmund Barton |
Alfred Deakin |
John Watson |
George Reid |
Alfred
Deakin |
Andrew Fisher |
Alfred Deakin |
Australia:
Andrew Fisher |
Joseph Cook |
Andrew Fisher |
Australia:
William Morris Hughes |
Australia: Stanley Bruce |
 India: George Curzon,
1st Marquess Curzon of Keddleston |
Gilbert
Elliot-Murray-Kynynmond, 4th Earl of Minto |
India: Charles Hardinge,
1st Baron of Penshurst |
India: Frederick Thesiger,
1st Viscount Chelmsford |
India: Rufus Isaacs, 1st
Marquess of Reading |
| 1900 |
1901 |
1902 |
1903 |
1904 |
1905 |
1906 |
1907 |
1908 |
1909 |
1910 |
1911 |
1912 |
1913 |
1914 |
1915 |
1916 |
1917 |
1918 |
1919 |
1920 |
1921 |
1922 |
1923 |
1924 |
 France:
3rd Republic |
Georges
Clemenceau (Premier) |
France:
3rd Republic |
Aristide
Briand (PM) |
Georges
Clemenceau (PM) |
France:
3rd Republic |
|
|
|
|
|
|
|
First World War |
|
|
|
|
 Deutschland: Kaiser
_Wilhelm_ II |
Deutschland: Weimar Republic |
 Österreich-Ungarn: Kaiser _Franz
Ferdinand_ II |
Ö-U: Kaiser Karl I |
 Österreich |
 Czechoslovakia |
|
Magyaroszag: Bela Kun |
Magyaroszag: Nikolaus Miklos
_Horthy_ de Nagybanya |
 Polska |
 Rossiya: Tsar _Nikolai_
II |
|
 Rossiya:
Lenin |
|
|
|
|
|
|
|
|
|
|
|
|
Balkan Wars |
|
|
|
|
Russian Civil War |
|
|
 Pope _Leo_ XIII |
Pope _Pius_ X |
Pope _Benedict_ XV |
Pope _Pius_ XI |
| 1900 |
1901 |
1902 |
1903 |
1904 |
1905 |
1906 |
1907 |
1908 |
1909 |
1910 |
1911 |
1912 |
1913 |
1914 |
1915 |
1916 |
1917 |
1918 |
1919 |
1920 |
1921 |
1922 |
1923 |
1924 |
 Nihon: (Meiji Emperor)
Mutsuhito |
Nihon: (Taisho Emperor)
Yoshihito |
Nihon: Emperor Yoshihito
(Prince Hirohito, Regent) |
 Chung Kuo: Emperor Guangxu |
Chung Kuo: Pu Yi, Emperor Xuantong |
 Chung Kuo: _Yuan Shikai |
|
 Mexico: Porfirio Diaz |
|
Mexico: Venustiano Carranza |
|
Mexico: Alvaro Obregón |
|
|
|
|
|
|
|
|
|
|
Mexican Revolution |
|
|
|
|
| 1900 |
1901 |
1902 |
1903 |
1904 |
1905 |
1906 |
1907 |
1908 |
1909 |
1910 |
1911 |
1912 |
1913 |
1914 |
1915 |
1916 |
1917 |
1918 |
1919 |
1920 |
1921 |
1922 |
1923 |
1924 |
| Sound Recording: Discs replace cylinders |
|
|
|
|
|
|
|
|
|
|
|
| Palace at Knossos,
Crete, excavated |
Gillette safety
razor |
|
Wright Brothers'
Flyer airplane |
Diode thermionic valve (radio tube) |
Cathode-ray picture tube (CRT)
demonstrated |
Victrola, first all-enclosed cabinet
phonograph |
Lee-Enfield rifle |
|
|
American Viscose
Company synthetic fabric Rayon |
Electric starter
for automobiles |
Vickers machine gun |
|
V-8 automobile
engine |
Villar Perosa
submachine gun |
Mark 1 Mother
battle tank |
Mustard gas |
Lever Brothers
Rinso granulated laundry detergent |
Dial telephone |
Molecular chain
structure of polymers uncovered |
Insulin recognized
as metabolizing glucose |
Technicolor for motion pictures |
Popsicle |
Birdseye frozen
fish fillets |
| Galveston Hurricane |
Instant coffee |
Hormones (secretin)
discovered |
Electrocardiogram |
Novocaine |
|
Permanent waves in
hair |
|
Vitamin-D fortified
milk |
|
|
Magnavox moving-coil loudspeaker |
|
|
Teletype machine |
Chlorine gas |
|
|
Kotex sanitary
napkins |
|
Four-wheel
hydraulic brakes |
Band-Aid adhesive
bandages |
Tomb of Pharaoh
Tutankhamen discovered |
Duco lacquer paint
on GM cars |
Kleenex disposible
facial tissues |
| Zeppelin LZ airship |
|
|
M1903 Springfield
rifle |
|
HMS
Dreadnought warship |
|
|
|
|
|
|
|
|
|
Sopwith
Camel fighter aircraft |
|
|
|
|
|
|
|
| 1900 |
1901 |
1902 |
1903 |
1904 |
1905 |
1906 |
1907 |
1908 |
1909 |
1910 |
1911 |
1912 |
1913 |
1914 |
1915 |
1916 |
1917 |
1918 |
1919 |
1920 |
1921 |
1922 |
1923 |
1924 |
|
Acoustico electric
hearing aid |
Tyrannosaurus rex |
First edited fiction motion picture:
The Great Train Robbery |
|
Einstein's Special
Theory of Relativity |
Audion triode amplifier |
|
Fossilized duckbill
dinosaur discovered with skin, tendons and flesh |
|
Recognition that
genes are carried on chromosomes |
Shipwreck: Titanic |
|
|
|
Einstein's General
Theory of Relativity |
|
First jazz record: "Livery Stable
Blues" by the Original Dixieland Jass Band |
HMS Furious &
HMS Hermes aircraft carriers |
|
First scheduled radio broadcast: KDKA,
Pittsburgh |
Bacillus
Calmette-Guerin tuberculosis vaccine |
Ur excavated |
First hit country record: Fiddlin' John
Carson's Little Old Log Cabin in the Lane |
|
|
Max Planck's
quantum hypothesis |
|
|
|
|
|
|
|
|
|
|
|
|
|
Fokker E fighter
aircraft |
|
|
|
|
Barbasol Shave
Cream |
|
|
|
|
|
Trans-atlantic radio transmission |
|
Ice cream cone |
|
|
San Francisco Earthquake |
|
|
|
|
|
|
|
|
|
|
|
|
|
Bloody Mary |
Thompson submachine
gun |
|
Balloon tires |
|
| 1900 |
1901 |
1902 |
1903 |
1904 |
1905 |
1906 |
1907 |
1908 |
1909 |
1910 |
1911 |
1912 |
1913 |
1914 |
1915 |
1916 |
1917 |
1918 |
1919 |
1920 |
1921 |
1922 |
1923 |
1924 |
