2013 Event Apple introduces iOS 7; the seventh version of the company's mobile operating system contains significant user interface changes 2012 Event Cristina Fernandez de Kirchner, President of Argentina, introduces a bill to nationalize 51% of YPF, the Argentine oil company, to Congress 2011 Event Helle Thorning-Schmidt introduces the new coalition government, officially becoming Denmark's 41st and first female Prime Minister 2011 Event Australia's Prime Minster Julia Gillard introduces details of plan to implement a carbon tax 1993 Event Intel introduces Pentium-processor (80586) 64 bits-60 MHz-100+ MIPS 1988 Event IBM introduces software for artificial intelligence 1988 Event Hewlett-Packard introduces HP-28S Advanced Scientific Calculator 1987 Event Philips introduces CD-video 1987 Event IBM introduces PS/2 and OS/2 1985 Event Intel introduces 32-bit 80386 microcomputer chip 1985 Event John Williams introduces new Today Show theme 1983 Event U.S. president Ronald Reagan introduces "Star Wars" missile defense plan (SDI) 1981 Event IBM introduces PC and PC-DOS version 1.0 1977 Event General Motors introduces 1st U.S. diesel auto (Oldsmobile 88) 1970 Event Digital Equipment Corp introduces PDP-11 minicomputer 1968 Event Motion Picture Association of America introduces rating system (G, M, R, X) 1966 Event Australia introduces 1st decimal currency postage stamps 1965 Event Senator Everett Dirksen introduces a bill to make marigold the national flower 1964 Event Baskin-Robbins introduces Beatle Nut ice cream 1963 Event Bell Telephone introduces push button telephone 1961 Event Russia introduces a new ruble worth $1.11 1959 Event U.S.S.R. introduces installment buying 1959 Event West Germany introduces 5 day work week 1957 Event Ford Motor Co introduces Edsel 1954 Event Michigan rep Ruth Thompson (R) introduces legislation to ban mailing "obscene, lewd, lascivious or filthy" phonograph (rock and roll) records 1953 Event California introduces sales tax, for education 1952 Event TWA introduces tourist class 1951 Event Dutch Reformed Church introduces new church choir 1949 Event RCA introduces 45 RPM record 1948 Event Bernard M. Baruch introduces term "Cold War" 1947 Event President Truman introduces Truman-doctrine to fight communism 1941 Event General Mills introduces Cheerios 1939 Event Montgomery Ward introduces Rudolph the 9th reindeer 1939 Event Billboard Magazine introduces hillbilly (country) music chart 1936 Event Hitler introduces Ferdinand Porsche's "Volkswagen" 1932 Event "Free Eats" introduces George "Spanky" McFarland to "Our Gang" 1931 Event Dupont introduces synthetic rubber 1929 Event Turkey introduces female suffrage 1929 Event Louie Marx introduces Yo-Yo 1914 Event Henry Ford introduces assembly line, for T-Fords 1913 Event New York Armory Show introduces Picasso, Matisse, Duchamp to U.S. public 1911 Event Belgian Mining law introduces 9 -hour work day 1908 Event Henry Ford introduces Model T car 1906 Event Einstein introduces his Theory of Relativity 1891 Event Nebraska introduces 8 hour work day 1889 Event Bayer introduces aspirin in powder form (Germany) 1878 Event Harley Procter introduces Ivory Soap 1872 Event Britain introduces secret ballot voting 1850 Event Henry Clay introduces a comprise bill on slavery to U.S. Senate 1837 Event Isaac Pitman introduces his steno system 1824 Event J. W. Goodrich introduces rubber galoshes to public 1741 Event Astronomer Anders Celcius introduces Centigrade temperature scale 1586 Event Sir Thomas Herriot introduces potatoes to England, from Colombia 1586 Event Sir Thomas Harriot introduces potatoes to Europe 1553 Event Flemish woman introduces practice of starching linen into England 1352 Event French king Jean II introduces Order of the Star