National Historic Chemical Landmarks

Chemists and Chemistry that Transformed Our Lives

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.

Educational Resources

Landmark Lesson Plans

  • Ready-to-go lessons, easily implemented by high school teachers.
  • Inquiry-based activities to supplement chemistry and history courses.
  • Student activities, reading material and videos based on Landmark subjects.

View the collection that includes the discovery of fullerenes, advances in chemical engineering, the evolution of man-made materials, and more. 



Upcoming Landmarks

Recent Landmarks