1803 Fact Sheet

Database: Year and Discoverer of Chemical Elements

Record Name Element Year Discovered Discovered By Source
Cerium Cerium 1803 1803 Jons Jacob Berzelius, Wilhelm von Hisinger, Martin Heinrich Klaproth Jefferson Lab
Iridium Iridium 1803 Smithson Tennant Jefferson Lab
Osmium Osmium 1803 Smithson Tennant Jefferson Lab
Palladium Palladium 1803 William Hyde Wollaston Jefferson Lab
Rhodium Rhodium 1803 William Hyde Wollaston Jefferson Lab

Database: List of Prince-Bishops of Trent

Record Name Historic Region Modern Region Name Period Start Period End Source
Emmanuel Maria Graf von Thun und Hohenstein [2] (6 November 1802 - February 1803) Holy Roman Empire Italy Emmanuel Maria Graf von Thun und Hohenstein [2] 6 November 1802 February 1803 Wikipedia

Database: Periodic Table of the Elements

Record Name Symbol Group Number Melting Point Boiling Point Density Year Discovered Atomic Weight % of Earth's Crust
Rhodium Rh 9 45 1966 3727 12.41 1803 102.9055
Palladium Pd 10 46 1552 2927 12.02 1803 106.42
Cerium Ce 101 58 795 3257 6.77 1803 140.116
Osmium Os 8 76 3045 5027 22.6 1803 190.23
Iridium Ir 9 77 2410 4527 22.4 1803 192.217

Database: Prison Population by Country

Record Name Year Source
Prison population for Zimbabwe 2007 Human Development Reports (UNDP)

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