A team of researchers has identified nicotine traces in a Mayan flask while examining ancient vessels from the Kislak Collection of the US Library of Congress for the presence of alkaloids. Two-and-a-half-inch wide and high Mayan clay vessel (Jennifer Loughmiller-Newman / Dmitri Zagorevski / RCMS) The study, published in the journal Rapid Communications in Mass Spectrometry, reveals the first physical evidence of tobacco in a codex-style flask marked...
