National Historic Chemical Landmarks

Welcome to the website of the American Chemical Society’s National Historic Chemical Landmarks program. Under this program, ACS grants Landmark status to seminal achievements in the history of the chemical sciences and provides a record of their contributions to chemistry and society in the U.S.

Chemists and chemistry have transformed our lives, from advancing medicine and industry to creating new products such as penicillin, plastics and much more. This site tells their stories.

Landmark Lesson Plans for high school chemistry and history courses

Interactive Features

Map

Recent Landmarks

Link to "Isolation of Phytochrome" National Historic Chemical Landmark webpage.
Link to "Edwin Land and Instant Photography" National Historic Chemical Landmark.
Link to "The Keeling Curve" National Historic Chemical Landmark webpage.
Link to "Kelly Pneumatic Iron Process" National Historic Chemical Landmark webpage.
Link to "Thomas Edison, Chemist" National Historic Chemical Landmark.

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