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  Lorenzo Romano Amedeo Carlo Avagadro was born into a nobel family of lawyers in Turin, Italy
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  Reasoned that gases were not formed of solitary atoms but were instead a compound molecules of two or more atoms. Equal volumes of equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
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  Published his work on molecullar theory.
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  He got Married anc later had six children
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  He was appointed professor of mathematical physics at the university of Turin
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  In Turin, Italy at age 79
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  Avagodro only gain recognition for his work 50 years after his death!