Dalton trumbo Biography

Dalton Trumbo

(James Dalton Trumbo, Montrose, 1905-Los Angeles, 1976) American screenwriter.Started as a journalist, he was a screenwriter since 1940, founded the writers' union and was persecuted by McCarthyism. Thirty seconds over Tokyo (M.Le Roy, 1944), Spartacus (S.Kubrick, 1960).In 1971 he directed Johnny Caught His Rifle , based on his own novel.

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Phoenician numbers

In History Today Online we explained in a previous post which were the Arabic numerals, but the truth is that they are not the only ones, and although somewhat complicated to understand, the truth is that the Phoenician numbers are perhaps much more difficult.In History Today Online we talk to you now of which are the Phoenician numbers. The Phoenicians also known as Canaanites, although they were a civilization that occupied a region called Canaan and was a territory that currently encompasses Israel, Syria and Lebanon.They always stood out for their art, closely linked to the different Mediterranean influences and as not for an alphabet that they created and that is in fact the origin of the alphabet that we know today, they also had a numerical system and that we tried to decipher below. The Phoenician Numbers: The main basis of the Phoenician numbers, are the angles and the stripes since these are the base they used to create the different numbers.Depending on how e...

Camilo Torres Restrepo Biography

Camilo Torres Restrepo (Jorge Camilo Torres Restrepo; Bogotá, 1929-San Vicente de Chucurí, Santander, 1966) Priest and Colombian guerrilla.After being ordained a priest in 1954 and completing his training with sociology studies in Belgium (1954-1959), he participated in the founding of the Faculty of Sociology of the National University of Colombia, where he taught between 1959 and 1962. Camilo Torres Restrepo Worried since his youth about deep social inequalities, the charismatic personality of Camilo Torres Restrepo, the coherence of his progressive message and his initiatives in favor of the classes most disadvantaged had made him, since his return to the country, a figure of great relevance.The expulsion from the university (1962) increased its public projection and marked the beginning of an approach to revolutionary positions, which culminated in the abandonment of the priesthood and the incorporation of the National Liberation Army into the guerrilla (1965).Since then cal...

Elmer Verner Maccollum Biography

Elmer Verner Maccollum (Redfield, 1879-Baltimore, 1967) American biochemist and biologist who made fundamental contributions in the field of dietetics, especially on the types of vitamins.He began studying at the University of Kansas, where he graduated in 1903.Later, he entered Yale University, where he received his doctorate in 1906.Between 1907 and 1927 he was Professor of Biochemistry at the University of Wisconsin (1907-27) and in the period 1917-1944 at Johns Hopkins University in Baltimore, an institution that, upon retirement, appointed him Honorary Professor. In his first investigations he tried to find a diet based on the mixture of simple substances, but he was unsuccessful in his experiments with animals despite enriching the flavor of the food in case this was what failed.He continued the work of the Nobel laureates Christiaan Eijkman-discoverer of the first vitamin, thiamine or B1-and Frederick Hopkins, as well as Casimir Funk, on the different types of substances pr...

Humberto Fernández Morán Biography

Humberto Fernández Morán (Maracaibo, Venezuela, 1924-Stockholm, Sweden, 1999) Venezuelan scientist.Inventor of the diamond blade, he was a pioneer in electron microscopy techniques and decisive in the process of scientific modernization of his country, in which he founded the Venezuelan Institute of Neurology and Brain Research (IVNIC). Humberto Fernández carried out his first studies between the capital of Zulia, Curaçao and New York.In 1936 he entered the German School of Maracaibo and the following year he left for Germany, where he finished high school at the Schulgemeinde Wichersdorf high school in Sallfeld.At the age of fifteen, he began his medical studies at the University of Munich.During the Second World War, six days before the Normandy landing (1944), in a basement and under low aerial bombardment, he graduated in medicine with Summa cum laude . Humberto Fernández Morán The following year he revalidated his degree at the Central University of Venezuela and worked ...

Johann sebastian Biography

Johann Sebastiani (Weimar, 1622-Königsberg, 1683) German composer.Formed probably in Italy, he settled in Königsberg, where he served as the master of the court and elector's chapel.He is the author of numerous lieder and a Passion according to Saint Matthew (1663).

Historical sources, raw material of history

Have you ever wondered how it is possible to know how the Egyptians dressed, what was the route of Alexander the Great in their conquests, or what beliefs they had first men ...? The question we should ask ourselves is: "How can we know the history?". The answer is simple: through the investigation of the historical sources .Next we bring you a brief explanation about the types of sources available, their use, and the problems that historians have to overcome when investigating them. In order to know the past , historians have different elements that provide information about a particular moment in a society: historical sources .Practically any element that comes from a society of the past can provide us with useful information to know it, if it is studied correctly.Among the different historical sources that may exist We can highlight some: · Written sources : official documents (made by governments) or private (letters, memoirs), newspapers, litera...

X-ray history

The X-rays were discovered in 1895 and from there they became a very revolutionary application in many branches of science, from astronomy to radiographs that we have not done so many times.the 120th anniversary of the X-rays knowing his inventor and the research that led him to such an important scientific advance. Article index Who invented the X-rays? The inventor or, rather, the person who discovered the X-rays was Wilhelm Conrad Rontgen , a German physicist who was focused on the field of electromagnetics Nothing else to present his discovery, Rontgen's theory received great attention from critics and public, and was translated into French, English or Russian. Although it is not a name as well known today as that of others you celebrate writers, the name of Wilhelm Conrad Rontgen is written in gold letters in the medical field, where he has had and has and numerous applications.The importance of his discovery was such in his day that he was the first Nobel Prize ...

Elsa triolet Biography

Elsa Triolet (Moscow, 1896-Saint-Arnoult-en-Yvelines, Yvelines, 1970) French writer of Russian origin.Mayakovsky's sister-in-law.He resided in Berlin (1927).His works include Good afternoon Teresa (1938), The first slip costs two hundred francs (1944, Goncourt prize), The sorrel horse (1953 ), The appointment of foreigners (1956) and The nylon age (1959-1963).

Alejandro Malaspina Biography

Alejandro Malaspina (Palermo, present-day Italy, 1754-Pontremoli, id., 1809) Italian sailor in the service of the Spanish Crown.He distinguished himself in various naval operations against England, after which he was promoted to lieutenant (1780).In 1789 he led a scientific expedition commanded by the Corvettes Discovered and Daring with the aim of circumnavigating the globe, taking on board important scientific personalities and a good number of expert cartoonists.In the course of it he traveled the American coasts of the Viceroyalty of the Río de la Plata and the western ones from Tierra del Fuego to Alaska, as well as the Philippines and some archipelagos of Oceania, to finally return in September 1794.However, Malaspina fell from grace and, in November 1795, was accused by Manuel Godoy of revolutionary and conspirator and sentenced to ten years in prison.In 1803 he was exiled to Italy, where he died.

Joseph Boussinesq Biography

Joseph Boussinesq (Saint-André-de-Sangonis, 1842-Paris, 1929) French mathematician.He also studied physics and was a professor of different disciplines in Paris.A member of the Academy of Sciences, his work covered very diverse fields of physics, mathematics and philosophy.His statistical studies on hydrodynamics are especially interesting.His works include Infinitesimal Analysis Course and Analytical Theory of Heat.

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