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Views PHP Hits Count 1900s
1910s
Ancient - 500A 1920s Future
1930s
1940s PHP Hits Count Visitors
Population in Millions Visualization Links: 100M, 1M, 160K, 40K, 20K, 10K, 1K, 1C, 10, 1
1.8 1.9 1.9 1.9 2 2 2 2
2 2 2.1 2.1 2.1 2.1 2.1 2.2
2.2 2.2 2.3 2.3 2.3 2.3 2.3 2.4
2.4 2.4 2.5 2.5 2.5 2.5 2.6 2.6
 
 
WW I
 
PV R
Irish War
Holocaust
1938 45
 
 
WW I
 
World War II
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1900s
1910s
1920s
1930s
1940s
1901 Vacuum cleaner
1902 Martinique giant rice rat Extinct Martinique
1903 First powered flight by Wright brothers
1905 Einstein's Special theory of relativity
1905 Rutherford's Nuclear model of atom
1906 Vitamins discovered by Hopkins;
1906 first sound radio broadcasting
1906 Merriam's elk Extinct SW USA
1909 Ford Model 'T'
1909 Vacuum cleaner
1909 First powered flight by Wright brothers
1909 Einstein's Special theory of relativity
1909 Vitamins discovered by Hopkins;
1909 first sound radio broadcasting
1910 Rutherford's Nuclear model of atom
1910 First air mail
1910 Seaplane invented
1910 First air mail
1910 Stainless steel
1910 Slender-billed grackle Extinct Mexico
1911 Newfoundland wolf  Extinct
1912 Stainless steel
1912 Guadalupe storm-petrel Extinct Guadalupe, Mexico
1914 Panama canal opens
1914 Zipper
1914 Traffic lights and
1914 35mm camera are all invented
1914 Passenger pigeon Extinct Eastern U.S. & Canada
1914 18 World War I 20 million deaths
1915 Einstein's General Theory of Relativity
1916 First Tank developed
1916 first Jazz recordings
1919 League of Nations formed
1919 Rutherford splits atom
1920s Alvord cutthroat trout Extinct Alvord Dry Lake, Oregon
1920 Banks Island wolf Extinct Canada
1921 Marconi makes first Radio Broadcast
1922 Insecticide developed
1922 California grizzly bear Extinct
1923 First 'Talkie' Movie
1924 Insecticide developed
1926 First Television
1926 Anthony's woodrat Extinct Mexico
1927 Lindbergh flies Atlantic
Spirit of St. Louis 1957
1928 Discovery of Penicillin
1928 Colour TV
1928 Mickey Mouse
1928 Guadeloupe ameiva Extinct
1930 Pluto discovered
1930 Jet engine
1930 Coward's Private lives book
1931 Electron Microscope
1932 Bunker's woodrat Extinct Mexico (Coronados Islands)
1932 Heath hen Extinct New England
1933 Radar
1933 Marconi makes first Radio Broadcast
1934 Nylon developed
1935 Southern Rocky Mountain wolf Extinct USA
1936 Helicopter
1936 Nylon developed
1937 Photocopier
1937 Dwarf hutia Extinct Cuba
1939 DDT insecticide developed
1939 Gone with Wind
1939 - 45 World War II 55 million including holocaust Chinese revolution deaths
1940 Cascade Mountains wolf  Extinct
1940 - 5 5 Indigo-capped hummingbird  Extinct Costa Rica
1941 Aerosol can
1941 Citizen Kane
1942 Fermi builds Nuclear reactor
1943 Aqualung by Cousteau Gagnan
1945 Atomic bombs dropped on Hiroshima Nagasaki; End of War
1946 Development of Computers
1947 Transistor invented
1947 Puebla deer mouse Extinct Mexico
1948 LP's invented
1948 Ash Meadows killifish Extinct Ash Meadows, Nevada
1949 Orwell's 1984
1900s
1910s
1920s
1930s
1940s