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Around 1840 coal surface mining began in Petroşani, Vulcan and Petrila.
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Around and 1840
Around 1840, Volney B. Palmer established the roots of the modern day advertising agency in Philadelphia.
" Around 1840 the German nobles of the Governorate of Livonia devised the term " Balts " to mean themselves, the German upper classes of Livonia, excluding the Latvian and Estonian lower classes.
Around 1840 – 41, German meteorologist Ludwig Kaemtz added stratocumulus as a mostly detached low-cloud genus of limited convection with both cumuliform and stratiform characteristics similar to upper-level cirrocumulus.
Around 1840, Fort DeSoto was established in present-day Hernando County in the northeast edge of present-day Brooksville to protect settlers in the area from Native Americans.
Around 1840 many emigrated to America — Michigan in particular.
Around 1840, a developer attempted to make a larger community out of Hinsdale village and Scotts Corners, but nothing ever came of the scheme.
Around 1840, two of seven recorded millionaires in the United States were Thomaston sea captains.
Around 1830, Planche was introduced by the famous writer Alfred de Vigny to François Buloz, director of the Revue des deux mondes, and contributed to this journal until 1840.
Around 1840, Cox took up oil painting, studying under W. J. Miller.
Around 1840 James Pownall, one of the founder members of the silk manufacturing firm of Bickam and Pownall was tenant.
Around 1840 only two medical schools existed in India, one at Calcutta and another at Madras.
Around 1840 Drummond left the property vacant and put it up for auction, but it was unsold and lay empty for two years.
Around 1840, German missionaries started linguistic research into the Gbe languages.
Around 1840, a public well was opened in the market square.
Around 1835, he became acquainted with Abraham Lincoln and soon became involved in local politics, being elected to the Illinois House of Representatives on July 1, 1837, and serving on the Illinois Senate from 1840 to 1844.
Around 1840, Ferdinand Georg Waldmüller painted a Still Life with Silver Vessels and Red-Figure Bell Krater.
Around 1840 he joined the English Freemasonry, and in October 1847 was admitted to Polish national lodge in London.
Around 1840 the Westport Canal was built which joined the river at Langport.
Around 1840, the North Midland Railway, the Midland Counties Railway and the Birmingham and Derby Railway set up workshops to the rear of Derby station.
Around 1840, Scottish magician John Henry Anderson began demonstrating the gun trick in theatres throughout Britain.
Around 1840 ( the exact date depends upon the denomination ), extra drapery was added to Liberty's left elbow.
Around 1840, he began to compose intensively, writing his first operas and several other stage works, as well as sacred music and secular cantatas.
Around and coal
Around the unburnt coke will be a transitional layer of coal being transformed into coke by the heat of the fire.
Around 1837 local blacksmith James Woolfolk found an outcropping of coal on his land.
Around 1920 the boom ended with the closing of the coal mines and the relocation of the steel mill.
Around 1837 an outcropping of coal was discovered and the first coal mine in the county opened in 1869.
Around 1905, coal mines opened in the area, and coal mining was then a thriving concern for the next half-century.
Around 1900, the Douglas Coal and Coke Company purchased of land in the Dunlap vicinity with plans to mine coal and convert the coal into industrial coke.
Around that time, the coal mines that soon opened up in the area — around Harman, Bluefield, War, and Pocahontas — were known as the Pocahontas Coal Fields ; they helped drive the Industrial Revolution in the United States and fuel the US and British Navies during both World Wars.
Around 1900, many cities delivered syngas ( centrally produced, typically from coal ) to residences.
Around the middle of the 19th century, Naomasa Nabeshima strove to set right the domain's financial affairs, reduce the number of government officials, and encourage local industry such as Arita porcelain, green tea, and coal.
Around passed through the Leicestershire coal field, and was heavily affected by subsidence, with the result that this section from Moira, southwards to Snarestone, was progressively closed in 1944, 1957 and 1966, leaving of navigable canal.
Around 1890, he moved to Elkins, West Virginia, a town he had founded earlier, to pursue coal and rail interests.
Around 1879, Kelly was reportedly married to a coal miner named Davies, who was killed two or three years later in a mine explosion.
Around 1900 the first voices were raised for nationalization of the Limburg coal fields, in the context of the threat of war in the Balkans.
: Around 50 student environmentalists and Greenpeace volunteers unfurled a " Quit Coal " banner outside the plant while 12 activists occupied the brown coal pit, with two locking themselves to coal dredging equipment.
Around and surface
Around a black hole there is a mathematically defined surface called an event horizon that marks the point of no return.
Around the time of the American Civil War, syrup makers started using large, flat sheet metal pans as they were more efficient for boiling than heavy, rounded iron kettles, because of a greater surface area for evaporation.
Around 1900, producers bent the tin that formed the bottom of a pan into a series of flues, which increased the heated surface area of the pan and again decreased boiling time.
Around this time he said that a picture was " a flat surface with paint on it-nothing more ".
Around the 6th century BC, burnished red wares, made of a fine iron-rich clay and characterized by a smooth, lustrous surface, appear in dolmen tombs, as well as in domestic bowls and cups.
Around 71 % of the Earth's surface is covered by oceans, and seven-eighths of the Earth's land is confined to the land hemisphere, so the majority of locations on land do not have land-based antipodes.
Around 90 % of the fresh water on the Earth's surface is held in the ice sheet, and, if melted, would cause sea levels to rise by 61. 1 metres.
Around 2005, Lake Mweru Wantipa's main north-east to south-west axis was about 65 km long and it was about 20 km wide, but a narrow branch extends roughly 30 km east from the northern end, giving a surface area of about 1500 km².
The underneath surface of an upper Wrap Around Hawley retainer resting on top of a retainer case
Around 30 ° in both hemispheres air begins to descend toward the surface in subtropical high-pressure belts known as subtropical ridges.
Around the same time, A. Benninghoven introduced the method of static SIMS, where the primary ion current density is so small that only a negligible fraction ( typically 1 %) of the first surface layer is necessary for surface analysis.
Around 1873 – 1874, he made a striking breakthrough by rediscovering the technique of lustre ware ( characterized by a reflective, metallic surface ) found in Hispano-Moresque pottery and Italian maiolica.
Around a third of the Earth's land surface can be considered as having been subject to periglacial conditions at some time.
Around the time of the full moon this feature is one of the brightest spots on the lunar surface.
Around five km to the east is the small village of Ngawha Springs, where hot water springs rise to the surface from the Ngawha geothermal field, and where the Northland Region Corrections Facility is situated.
Around this time, Bemis ' mental health problems began to surface.
Around that nucleus and on the surface of the black carbon particles, there were higher proportions of forms of carboxylic and phenolic Cs spatially and structurally distinct from the particle's nucleus.
Around this time, Maurice's problems with alcohol began to surface.
Around 2500 – 3000 metres below the surface, but considerably deeper near the Alps, the drillings have hit the crystalline basement.
7.603 seconds.