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Friedrich Oskar Giesel
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<p>Friedrich Oskar Giesel (20 May 1852 – 13 November 1927, known as Fritz) was a German <a href="/facts/Organic_chemistry/djxhxaNg">organic chemist</a>. During his work in a <a href="/facts/Quinine/YMB9QgzM">quinine</a> <a href="/facts/Factory/GPIW0snN">factory</a> in the late 1890s, he started to work on the at-that-time-new field of <a href="/facts/Radiochemistry/vdL6AaCH">radiochemistry</a> and started the production of radium. In the period between 1902 and 1904, he was able to isolate a new element <a href="/facts/Emanium/GMQtJ4Gm">emanium</a>. In a now controversially reviewed process, it was stated that emanium is identical to <a href="/facts/Actinium/GMQtJ4Gm">actinium</a>, which was discovered by <a href="/facts/Andr%25C3%25A9-Louis_Debierne/RAHKrFs6">André-Louis Debierne</a> in 1899. </p>