Claim: Nikodem Caro contributed to the creation of combat gases in World War I and has authored several works about elements.
Evidence: Caro also contributed to the production of combat gases used by German troops during World War I. Caro is the author of many works about various elements, synthesis a chemical compounds actions e.g. Gewinnung von Chlor und Salzsäure (1893), Landwirtschaftliche Untersuchungen (1895), Handbuch für Acetylen (1904), Die Torflager als Kraftquellen (1907).