All Historical And Foundational Chemists (Pre-1900)

This group collects the Chemistry subcategory's members whose own recorded description names no specific modern subfield and whose first mentioned year, most often a birth year, is before 1900: the classical and foundational era of chemistry, including the discoverers of the elements and the founders of the periodic system, predating the subfield specializations this subcategory's other groups match on. It is kept apart from Other Chemists purely by era, the axis the report's own proposed scheme for this subcategory names explicitly.