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Hace 2 días · 1928: Penicillin is first observed to exude antibiotic substances by Nobel laureate Alexander Fleming. Development of medicinal penicillin is attributed to a team of medics and scientists including Howard Walter Florey, Ernst Chain and Norman Heatley. 1928: Frank Whittle formally submitted his ideas for
Hace 3 días · Wikimedia Commons has media related to 1925. 1925 ( MCMXXV) was a common year starting on Thursday of the Gregorian calendar, the 1925th year of the Common Era (CE) and Anno Domini (AD) designations, the 925th year of the 2nd millennium, the 25th year of the 20th century, and the 6th year of the 1920s decade.
Hace 1 día · 1928 and 1929 were the times in the 20th century that the wealth gap reached such skewed extremes; half the unemployed had been out of work for over six months, something that was not repeated until the late-2000s recession. 2007 and 2008 eventually saw the world reach new levels of wealth gap inequality that rivalled the years of ...
29 de mar. de 2024 · As a general in the Italian air force and a professor of aeronautical engineering at the University of Naples in 1928, Nobile began a new series of flights over unexplored Arctic regions with a craft similar to the Norge. In May 1928, on the third flight, the airship crashed on the ice north-northeast of Spitsbergen.
This 1934 book from an academic at Ohio State University is concerned with measuring radio's audience. Of special interest is Chapter 7: "Analyzing Sales Response" about measuring the effectiveness of radio advertising that the author considers to be "made necessary by the emphasis now placed on selling goods by means of radio" and by radio's growing presence in daily life.
26 de mar. de 2024 · The 1928 Kellogg-Briand Pact was signed by 56 countries. All the major powers promised not to conduct foreign policy using military means. In 1929, Germany's reparations as stipulated by the Treaty of Versailles were reduced from £6.6 million to £2 million.
3 de abr. de 2024 · The Editors of Encyclopaedia Britannica. Last Updated: Apr 3, 2024 • Article History. James Garner. Category: Arts & Culture. Original name: James Scott Bumgarner. Born: April 7, 1928, Norman, Oklahoma, U.S. Died: July 19, 2014, Brentwood, California (aged 86) Awards And Honors: Emmy Award (1977) Emmy Award (1987): Outstanding Drama/Comedy Special.
