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Carl Leverkus
Carl Leverkus (5 November 1804 – 4 February 1889) was a German chemist and chemistry entrepreneur. The city of Leverkusen is named after him. Education Leverkus started training as a pharmacist in 1822, and then studied at the University of Marburg. Following a stint as an assistant pharmacist in Trier, he went to Paris, where he worked at a pharmacy and studied chemistry at the Sorbonne in the evenings. In 1829, he took the apothecary examinations in Berlin. He earned his doctorate in 1830 from the University of Giessen with a dissertation on the chemistry of silver, which was reviewed by Justus von Liebig. Life and work In 1834, Leverkus opened the first German factory for the production of artificial ultramarine blue in Wermelskirchen. Later he moved his factory to the ''Kahlberg'' in Wiesdorf. He called the emerging settlement "Leverkusen" after the family home in Lennep. The factory was a model plant with the latest technology and facilities, making it a big eco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wermelskirchen
Wermelskirchen (; Ripuarian language, Ripuarian: ''Wärmelßkirrshe'') is a town in the Rheinisch-Bergischer Kreis, in North Rhine-Westphalia, Germany, southeast of Remscheid. It is home to one of Europe's biggest live Christmas trees (measuring 26m). Geography The distance to Cologne is about 35 kilometers, to Düsseldorf about 45 kilometers. The neighboring municipalities are Remscheid, Hückeswagen, Wipperfürth, Kürten, Odenthal, Burscheid and Solingen. The townscape is characterized by Altberg slate and half-timbered houses. The city area of Wermelskirchen (area: 74,74 km²) composed out of three district's: the initial Wermelskirchen and the incorporated, previously independent municipalities, Dhünn and Dabringhausen. Coat of arms The coat-of-arms of the city of Wermelskirchen looks like a silver shield split into thirds. In the left field is an oak tree. In the right field there is a Swan and pictured in the middle field there is a church. History From 1822 to 1945, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultramarine Blue
Ultramarine is a deep blue pigment which was originally made by grinding lapis lazuli into a powder. Its lengthy grinding and washing process makes the natural pigment quite valuable—roughly ten times more expensive than the stone it comes from and as expensive as gold. The name ultramarine comes from the Latin word . The word means 'beyond the sea', as the pigment was imported by Italian traders during the 14th and 15th centuries from mines in Afghanistan. Much of the expansion of ultramarine can be attributed to Venice which historically was the port of entry for lapis lazuli in Europe. Ultramarine was the finest and most expensive blue used by Renaissance painters. It was often used for the robes of the Virgin Mary and symbolized holiness and humility. It remained an extremely expensive pigment until a synthetic ultramarine was invented in 1826. Ultramarine is a permanent pigment when under ideal preservation conditions. Otherwise, it is susceptible to discoloration an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From The Duchy Of Berg
The term "the people" refers to the public or common mass of people of a polity. As such it is a concept of human rights law, international law as well as constitutional law, particularly used for claims of popular sovereignty. In contrast, a people is any plurality of persons considered as a whole. Used in politics and law, the term "a people" refers to the collective or community of an ethnic group or nation. Concepts Legal Chapter One, Article One of the Charter of the United Nations states that "peoples" have the right to self-determination. Though the mere status as peoples and the right to self-determination, as for example in the case of Indigenous peoples (''peoples'', as in all groups of indigenous people, not merely all indigenous persons as in ''indigenous people''), does not automatically provide for independent sovereignty and therefore secession. Indeed, judge Ivor Jennings identified the inherent problems in the right of "peoples" to self-determination, as i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1889 Deaths
Events January * January 1 ** The total solar eclipse of January 1, 1889 is seen over parts of California and Nevada. ** Paiute spiritual leader Wovoka experiences a Vision (spirituality), vision, leading to the start of the Ghost Dance movement in the Dakotas. * January 4 – An Act to Regulate Appointments in the Marine Hospital Service of the United States is signed by President Grover Cleveland. It establishes a Commissioned Corps of officers, as a predecessor to the modern-day U.S. Public Health Service Commissioned Corps. * January 8 – Herman Hollerith receives a patent for his electric tabulating machine in the United States. * January 15 – The Coca-Cola Company is originally Incorporation (business), incorporated as the Pemberton Medicine Company in Atlanta, Georgia (U.S. state), Georgia. * January 22 – Columbia Phonograph is formed in Washington, D.C. * January 30 – Mayerling incident: Rudolf, Crown Prince of Austria, and his mistress Baroness Mary Vetsera co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1804 Births
Events January–March * January 1 – Haiti gains independence from France, and becomes the first black republic. * February 4 – The Sokoto Caliphate is founded in West Africa. * February 14 – The First Serbian uprising begins the Serbian Revolution. By 1817, the Principality of Serbia will have proclaimed self-rule from the Ottoman Empire, the first nation-state in Europe to do so. * February 15 – New Jersey becomes the last of the northern United States to abolish History of slavery in New Jersey, slavery. * February 16 – First Barbary War: Stephen Decatur leads a raid to burn the pirate-held frigate at Tripoli, Libya, Tripoli to deny her further use by the captors. * February 18 – Ohio University is chartered by the Ohio General Assembly. * February 20 – Hobart is established in its permanent location in Van Diemen's Land (modern-day Tasmania) as a British penal colony. * February 21 – Cornwall, Cornishman Richard Trevithick's newly built ''Penydarren' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Kippenberger
Martin Kippenberger (25 February 1953 – 7 March 1997) was a German painter, draftsman, photographer, sculptor, installation and performance artist. He became known for his prolific output in a wide range of styles and media, superfiction, as well as his provocative, jocular and hard-drinking public persona. Kippenberger was "widely regarded as one of the most talented German artists of his generation", Roberta Smith (March 11, 1997)Martin Kippenberger, 43, Artist Of Irreverence and Mixed Styles''New York Times''. according to Roberta Smith of the ''New York Times''. He was at the center of a generation of German ''enfants terribles'', including Albert Oehlen, Markus Oehlen, Werner Büttner, Georg Herold, Dieter Göls, Michael Krebber, and Günther Förg. Life Kippenberger was born in Dortmund in 1953, the only boy in a family with five children, with two elder and two younger sisters. His father was director of the Katharina-Elisabeth colliery, his mother a dermatolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayer AG
Bayer AG (English: , commonly pronounced ; ) is a German multinational pharmaceutical and biotechnology company and is one of the largest pharmaceutical companies and biomedical companies in the world. Headquartered in Leverkusen, Bayer's areas of business include: pharmaceuticals, consumer healthcare products, agricultural chemicals, seeds and biotechnology products. The company is a component of the EURO STOXX 50 stock market index. Bayer was founded in 1863 in Barmen as a partnership between dye salesman Friedrich Bayer (1825–1880) and dyer Friedrich Weskott (1821–1876). The company was established as a dyestuffs producer, but the versatility of aniline chemistry led Bayer to expand its business into other areas. In 1899, Bayer launched the compound acetylsalicylic acid under the trademarked name Aspirin. Aspirin is on the World Health Organization's List of Essential Medicines. In 2021, it was the 34th most commonly prescribed medication in the United States, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alizarin
Alizarin (also known as 1,2-dihydroxyanthraquinone, Mordant Red 11, C.I. 58000, and Turkey Red) is an organic compound with formula that has been used throughout history as a red dye, principally for dyeing textile fabrics. Historically it was derived from the roots of plants of the madder genus.The primary madder species from which alizarin historically has been obtained is '' Rubia tinctorum''. See also In 1869, it became the first natural dye to be produced synthetically. Alizarin is the main ingredient for the manufacture of the madder lake pigments known to painters as rose madder and alizarin crimson. Alizarin in the most common usage of the term has a deep red color, but the term is also part of the name for several related non-red dyes, such as Alizarine Cyanine Green and Alizarine Brilliant Blue. A use of alizarin in modern times is as a staining agent in biological research because it stains free calcium and certain calcium compounds a red or light purple color. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuremberg
Nuremberg (, ; ; in the local East Franconian dialect: ''Nämberch'' ) is the Franconia#Towns and cities, largest city in Franconia, the List of cities in Bavaria by population, second-largest city in the States of Germany, German state of Bavaria, and its 544,414 (2023) inhabitants make it the List of cities in Germany by population, 14th-largest city in Germany. Nuremberg sits on the Pegnitz (river), Pegnitz, which carries the name Regnitz from its confluence with the Rednitz in Fürth onwards (), and on the Rhine–Main–Danube Canal, that connects the North Sea to the Black Sea. Lying in the Bavarian Regierungsbezirk, administrative region of Middle Franconia, it is the largest city and unofficial capital of the entire cultural region of Franconia. The city is surrounded on three sides by the , a large forest, and in the north lies (''garlic land''), an extensive vegetable growing area and cultural landscape. The city forms a continuous conurbation with the neighbouring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honorary Citizen
Honorary citizenship is a status bestowed by a city or other government on a foreign or native individual whom it considers to be especially admirable or otherwise worthy of the distinction. The honor usually is symbolic and does not confer any change to citizenship or nationality. North America Canada Honorary Canadian citizenship requires unanimous approval in both houses of Parliament. The only people to ever receive honorary Canadian citizenship are Raoul Wallenberg posthumously in 1985; Nelson Mandela in 2001; the 14th Dalai Lama Tenzin Gyatso in 2006; Aung San Suu Kyi in 2007 (revoked in 2018); Prince Karim Aga Khan in 2009; and Malala Yousafzai in 2014. United States By act of United States Congress and presidential assent, an individual may be named an honorary citizen of the United States. Since 1963, it has been awarded to only eight individuals. Europe Germany In Germany, Section 14 of the Nationality Act allows the Federal Minister of the Interior to nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Choir
A choir ( ), also known as a chorale or chorus (from Latin ''chorus'', meaning 'a dance in a circle') is a musical ensemble of singers. Choral music, in turn, is the music written specifically for such an ensemble to perform or in other words is the music performed by the ensemble. Choirs may perform music from the classical music repertoire, which spans from the Medieval music, medieval era to the present, or popular music repertoire. Most choirs are led by a conducting, conductor, who leads the performances with arm, hand, and facial gestures. The term ''choir'' is very often applied to groups affiliated with a church (whether or not they actually occupy the Choir (architecture), quire), whereas a ''chorus'' performs in theatres or concert halls, but this distinction is not rigid. Choirs may sing without instruments, or accompanied by a piano, accordion, pipe organ, a small ensemble, or an orchestra. A choir can be a subset of an ensemble; thus one speaks of the "woodwind c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
