Coordinates: 47°53′34″N 2°38′18″W / 47.8928°N 2.6383°W / 47.8928; -2.6383

Guéhenno (Breton: Gwezhennoù) is a commune in the Morbihan department of Brittany in north-western France.

Inhabitants of Guéhenno are called Guéhennotais.

The Crisis is the official magazine of the National Association for the Advancement of Colored People (NAACP), and was founded in 1910 by W. E. B. Du Bois (editor), Oswald Garrison Villard, J. Max Barber, Charles Edward Russell, Kelly Miller, W.S. Braithwaite, M. D. Maclean.

The original title of the journal was The Crisis: A Record of The Darker Races. From 1997 to 2003, it appeared as The New Crisis: The Magazine of Opportunities and Ideas, but the title has since reverted to The Crisis. The title derives from the poem "The Present Crisis" by James Russell Lowell. Published monthly, by 1920 its circulation had reached 100,000 copies. Du Bois proclaimed his intentions in his first editorial:

Predominantly a current-affairs journal, The Crisis also included poems, reviews, and essays on culture and history. Du Bois' initial position as editor was in line with the NAACP's liberal programme of social reform and racial equality, but by the 1930s Du Bois was advocating a form of black separatism. This led to disputes between Du Bois and the NAACP resulting in his resignation as editor in 1934. He was replaced by Roy Wilkins.

Marcel-Jules-Marie Guéhenno, known as Jean Guéhenno (25 March 1890, Fougères, Ille-et-Vilaine - 22 September 1978, Paris) was a French essayist, writer and literary critic.

Pierre Eugène Marcellin Berthelot (25 October 1827 – 18 March 1907) was a French chemist and politician noted for the Thomsen-Berthelot principle of thermochemistry. He synthesized many organic compounds from inorganic substances and disproved the theory of vitalism. He is considered as one of the greatest chemists of all time.

He was born in Paris, the son of a doctor. After doing well at school in history and philosophy, he became a scientist.

The fundamental conception that underlay all Berthelot's chemical work was that all chemical phenomena depend on the action of physical forces which can be determined and measured. When he began his active career it was generally believed that, although some instances of the synthetic production of organic substances had been observed, on the whole organic chemistry remained an analytical science and could not become a constructive one, because the formation of the substances with which it deals required the intervention of vital activity in some shape. To this attitude he offered uncompromising opposition, and by the synthetic production of numerous hydrocarbons, natural fats, sugars and other bodies he proved that organic compounds can be formed by ordinary methods of chemical manipulation and obey the same principles as inorganic substances, thus exhibiting the "creative character in virtue of which chemistry actually realizes the abstract conceptions of its theories and classifications—a prerogative so far possessed neither by the natural nor by the historical sciences."