Chemist in 1869: Mendeleev's periodic table

The scientist who makes and measures matter itself — from Tapputi's Babylonian perfume still to today's robot laboratories, still the one who decides what the spectrum means. "Chemist" is simply "alchemist" with the first syllable worn off, and the Greek khēmeia behind both words may go back to kmt, Egypt's own name for itself. The trade is older than any of those words: Babylonian perfume-makers were running stills by 1200 BCE, Egyptian embalmers and glassmakers held closely guarded recipes, and Chinese alchemists seeking an elixir of immortality stumbled onto gunpowder instead. The modern chemist inherited all of it — the person who makes new substances and finds out what existing ones are made of.

There is no license to practice chemistry the way there is for medicine or law, but the real gate is nearly as tall: a bachelor's degree opens quality-control and technician bench work, while leading original research almost everywhere requires a PhD and often years of postdoctoral work on top — roughly a decade from leaving school to independence. What varies by country is who pays for that decade: German and Nordic students study nearly free and every serious chemistry PhD program pays its students a stipend, while an American bachelor's degree alone can cost six figures.

This page follows the trade from Tapputi's still and Jabir ibn Hayyan's laboratory through Lavoisier's balance, Perkin's accidental purple, Mendeleev's prophetic gaps and the Haber–Bosch reactor that now feeds half the world. It covers how people actually become chemists today, what a working day between fume hood and spectrometer demands, the eight figures who shaped the science, and how much of the job robot labs and AI retrosynthesis can realistically take.