When did fire first appear in the world and who discovered it?
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The first fire in the world no doubt occurred during the first thunderstorm of the first summer after the first plants started to grow on land.  As for who discovered it, that is lost in the murky past.
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Probably gold was one of the first elements "discovered". However, copper as well has been known since prehistoric times. Iron has been known since prehistoric times, as has zinc, silver, tin, lead and mercury. Where these were discovered first, and by who, is not clear. However, there are clearly a lot of contenders for the "first element", if one wants to choose among these. \n\nIf one looks for more modern discoveries, then these are better documented (look at the attached reference). Some early contenders are listed below:\n\nCobalt was discovered by Swedish Chemist Georg Brandt in 1735. \n\nCavendish found hydrogen in 1766.  \n\nJoseph Black of Scotland found magnesium was a separate element in 1755. \n\nNickel was found by Swedish metallurgist Axel-Frederik Cronstedt in 1751. \n\nDaniel Rutherford discovered nitrogen in 1772. \n\nCarl-Wilhelm Scheele in 1771 discovered oxygen is an element in Sweden. \n\nGerman merchant and alchemist Hennig Brand found phosphorus in 1669.\n\nOf the modern elements,  phosphorus appears to be the first found, in Germany.
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Oxygen was first discovered by Michał Sędziwój, a Polish alchemist and philosopher in the late 16th century. Sędziwój assumed the existence of oxygen by warming nitre (saltpeter). He thought of the gas given off as "the elixir of life".\nOxygen was again discovered by the Swedish pharmacist Carl Wilhelm Scheele sometime before 1773, but the discovery was not published until after the independent discovery by Joseph Priestley on August 1, 1774, who called the gas dephlogisticated air (see phlogiston theory). Priestley published his discoveries in 1775 and Scheele in 1777; consequently Priestley is usually given the credit. It was named by Antoine Laurent Lavoisier after Priestley's publication in 1775.
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The discovery of oxygen
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Because that is the one of the four elements (earth water air fire) known to the ancients which the "underneath" consisted of. Latin "Terra" also means "(dry) land".\n\nHad the ancients recognized the earth as being just another planet, though the one they happened to live on, the naming might have been different - a deity might have been assigned, as for the other known planets of that time.
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Chlorine (Gr. χλωρος, greenish yellow) was discovered in 1774 by Swedish chemist Carl Wilhelm Scheele, who mistakenly thought it contained oxygen. Chlorine was given its name in 1810 by Sir Humphry Davy, who insisted that it was in fact an element.\n\nChlorine gas was first used as a weapon against human beings in WWI on April 22nd, 1915.
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The greenhouse effect, first discovered by Joseph Fourier in 1824, and quantified by Svante Arrhenius in 1896, is the process by which an atmosphere warms a planet.\n\nHere's the link to the very informative Wikipedia entry on "greenhouse effect":\n\nhttp://en.wikipedia.org/wiki/Greenhouse_Effect
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air,fire, water and earth
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mercury is known to mankind for a very long time. Probably the Greek or Romans or even the Egyptians were the ones who discovered it for poison or thermometers.\n\nAnother posobility is in the Iron age. This is because people needed thermometers to get to the right tempertature the  bend the iron and the old theromometers consisted of mercury.
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The discovery of fire predates writing. Because of this, there is no record of that particular event. It would be diffciult to make the arguement that it was a scientific discovery since there would have been no scientific methods developed at the time.
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The discovery of glass\nNatural glass has existed since the beginnings of time, formed when certain types of rocks melt as a result of high-temperature phenomena such as volcanic eruptions, lightning strikes or the impact of meteorites, and then cool and solidify rapidly. Stone-age man is believed to have used cutting tools made of obsidian (a natural glass of volcanic origin also known as hyalopsite, Iceland agate, or mountain mahogany) and tektites (naturally-formed glasses of extraterrestrial or other origin, also referred to as obsidianites).\n\nAccording to the ancient-Roman historian Pliny (AD 23-79), Phoenician merchants transporting stone actually discovered glass (or rather became aware of its existence accidentally) in the region of Syria around 5000 BC. Pliny tells how the merchants, after landing, rested cooking pots on blocks of nitrate placed by their fire. With the intense heat of the fire, the blocks eventually melted and mixed with the sand of the beach to form an opaque liquid.\n\nThis brief history looks, however, at the origins and evolution of man-made glass.\n\n5000 BC - A craft is born\nThe earliest man-made glass objects, mainly non-transparent glass beads, are thought to date back to around 3500 BC, with finds in Egypt and Eastern Mesopotamia. In the third millennium, in central Mesopotamia, the basic raw materials of glass were being used principally to produce glazes on pots and vases. The discovery may have been coincidental, with calciferous sand finding its way into an overheated kiln and combining with soda to form a coloured glaze on the ceramics. It was then, above all, Phoenician merchants and sailors who spread this new art along the coasts of the Mediterranean.\n\n3500 BC - The oldest fragments of glass vases (evidence of the origins of the hollow glass industry), however, date back to the 16th century BC and were found in Mesopotamia. Hollow glass production was also evolving around this time in Egypt, and there is evidence of other ancient glassmaking activities emerging independently in Mycenae (Greece), China and North Tyrol.\n\n16th century BC - Early hollow glass production\nAfter 1500 BC, Egyptian craftsmen are known to have begun developing a method for producing glass pots by dipping a core mould of compacted sand into molten glass and then turning the mould so that molten glass adhered to it. While still soft, the glass-covered mould could then be rolled on a slab of stone in order to smooth or decorate it. The earliest examples of Egyptian glassware are three vases bearing the name of the Pharaoh Thoutmosis III (1504-1450 BC), who brought glassmakers to Egypt as prisoners following a successful military campaign in Asia.\n\n1500 BC - There is little evidence of further evolution until the 9th century BC, when glassmaking revived in Mesopotamia. Over the following 500 years, glass production centred on Alessandria, from where it is thought to have spread to Italy.\n\n9th century BC - The first glassmaking "manual" dates back to around 650 BC. Instructions on how to make glass are contained in tablets from the library of the Assyrian king Ashurbanipal (669-626 BC).\n\n650 BC - Starting to blow\nA major breakthrough in glassmaking was the discovery of glassblowing some time between 27 BC and AD 14, attributed to Syrian craftsmen from the Sidon-Babylon area. The long thin metal tube used in the blowing process has changed very little since then. In the last century BC, the ancient Romans then began blowing glass inside moulds, greatly increasing the variety of shapes possible for hollow glass items.\n\n27 BC-AD 14 - The Roman connection\nThe Romans also did much to spread glassmaking technology. With its conquests, trade relations, road building, and effective political and economical administration, the Roman Empire created the conditions for the flourishing of glassworks across western Europe and the Mediterranean. During the reign of the emperor Augustus, glass objects be
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Well, it was not known in Europe until after the discovery of America. There explorers encountered tobacco and the odd sight of people with smoke coming out of their mouths and noses.
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It is believed that Albertus Magnus obtained the element in 1250 A.D. who obtained it by heating soap together with orpiment (arsenic trisulphide, As2S3). But actually Arsenic has been known since ancient times. It is so old, nobody knows who first discovered it or when. Arsenic compounds were mined by the early Chinese, Greek and Egyptian civilizations. No doubt they discovered its toxic properties early on. I don't know if anybody could find a name from the ancient history.
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None of the above mentioned.\n\nDefinition of fire: a chemical reaction between a fuel (Wood) and oxygen in the air. \n(Its the rising carbon atoms and other material emitting the light we perceive as fire).
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From having studied volcanicity when I was at university, the only one that springs to mind would be Vesuvius, which erupted in Italy in 79AD. Obviously during this time, populations where not as they are today, but 95% of all human were not wiped out during this eruption. However, all but one in the towns of Herculaneum and Pompeii died during the pyroclastic flow following the eruption. Just out of interest the guy that survived was in jail! How said crime doesnt pay ;-)\n\nUnfortunatly 10,000years ago there was no-one to document the evidence as such, only what we can deduce from the rocks from that time. \n\nHowever, if you remove the 10,000year bit of your question and the human element, there is a possible anwser back 60 to 65Ma. The Deccan Traps in India was a flood basalt which was so huge that it is one of the potential reaons the Dionsaurs died out. The volume lava produced during the eruption (the eruption was not one but many over a period of time) was something in teh region of 1 to 2 million square kilometers. It is widely recognised that the climatic effect of such a supervolcano would lead to a nuclear winter. \n\nHope this helps!
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Uh, the Great fire of Rome took place in AD 64...camera's weren't around at that point in time.  Good luck!
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The first use of fire control and fire making is\n generally attributed to Homo Habilis. This human ancestor\nlived between 2.2 to 1.6 million years ago. So the use\nof fire by man is roughly 2 million years old.\n  Most anthropologists consider fire making as the most important human invention. It made the difference between\nlife and death in climates where cold nights would have\nkilled them. Humans used fire to clear large tracts of\nland from uninhabitable thick jungle and to drive herds\nof prey over cliffs. Cooking food freed meats from harmful parasites and made it more digestible.\n Then fire was used to extract metals from the earth,\ncreate steam for steam engines, ignited in sophisticated ways in the internal combustion engine, turbo jets and rockets. \n Weekend cooking on the grill is a favorite summer pastime\nand it's done over an open fire.