it was discovered by sir humphery davey
http://wiki.answers.com/Q/How_was_baruim_discoverd
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Stones made from impure barium sulfate glow when exposed to light and will glow in the dark for up to six years if intensely heated in the presence of charcoal. These stones, known as Bologna stones, were discovered near Bologna, Italy in the early 1500s and were thought to possess magical properties by alchemists.
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education.jlab.org/itselemental/ele056.html
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Humphry Davy, who pioneered this technique, later called electrolysis, discovered barium in 1808. Davy produced barium for the first time by passing an electric current through molten barium hydroxide. He also used electrolysis to isolate potassium, sodium, calcium, magnesium, and strontium.
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www.discoveriesinmedicine.com/Bar-Cod/Barium.html
www.discoveriesinmedicine.com/Bar-Cod/Barium.html
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Barium - Ba; General Information; Discovery; Barium was discovered by Sir Humphry Davy in 1808 in London. Appearance; Barium is a relatively soft, silvery-white metal resembling lead. It oxidises very easily and is therefore stored under petroleum or in an inert gas atmosphere.
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www.rsc.org/chemsoc/visualelements/Pages/data/barium_da...
www.rsc.org/chemsoc/visualelements/Pages/data/barium_data.html
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Barium was discovered in 1808. Like calcium and magnesium, barium is found in minerals and in the sea. Barium occurs in substantial deposits of barytes, BaSO4. ... Barium is mainly used in: ... Because barium sulfate, BaSO4, is opague to x-rays, it is used in x-ray diagnoses of gastrointestinal examinations. The patient drinks...
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nobel.scas.bcit.ca/resource/ptable/ba.htm
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Sir Humphrey Davy discovered Barium in 1808. Barium is found only in combinations with other elements. It resembles calcium chemically and is soft and belongs to the alkaline earth group. Barite is used extensively as a weighing agent in oil-well drilling fluids.
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www.tamuk.edu/chemistry/WebElements/barium_element.htm
www.tamuk.edu/chemistry/WebElements/barium_element.htm
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Barium was discovered by Sir Humphry Davy (England) in 1808. The origin of the name comes from the Greek word barys meaning heavy. It is soft, slightly malleable, silvery-white metal. Attacked by air and water.
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www.ktf-split.hr/periodni/en/ba.html
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"Tarun, Barium was discovered by the Swedish chemist Karl Wilhelm Scheele in 1774. He can probably be called the unluckiest chemist in history, for although he discovered several elements such as chlorine, manganese, barium and several others, he does not receive undisputed credit for having discovered a single one.
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www.rense.com/general32/barium.htm
www.rense.com/general32/barium.htm
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Through electrolysis, Davy eventually discovered magnesium (Magnesia, a district in Thessaly), calcium (calx, L for lime), strontium, and barium in 1808.(10) For all these discoveries, much groundwork had of course been done by others.
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www.woodrow.org/teachers/chemistry/institutes/1992/Davy...
www.woodrow.org/teachers/chemistry/institutes/1992/Davy.html
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