Mary Baker Eddy’s convictions on slavery


Read what her letter to a Union army general tells us.

57. New religious movements and nineteenth-century revolutions


Find out what scholars mean by the term “new religious movement”—and why the nineteenth century was a dynamic time of religious innovation.

The Mother Church at night
How did The Mother Church respond to the 9/11 attacks?

Ask a Researcher

Learn about efforts to meet the needs of the moment and chart new paths.

One World 2021 program
Watch video replays of all our One World 2021 summer presentations.

Summer 2021 children's programming

One World 2021 took place in July and August.

Vaccination: what did Eddy say?


Learn how the founder of Christian Science advised church members on this subject.

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Welcome to The Mary Baker Eddy Library

Since opening to the public in 2002, the Library has offered a place to explore the life, ideas, and achievements of Mary Baker Eddy, who discovered and founded Christian Science—a pioneer whose work touched the fields of religion, health, and journalism. 

The Library houses a rich and extensive collection of original materials that includes documents, art and historic artifacts, photographs, books, and audiovisuals that document the history of the church she founded, up to the present day. 

Explore this website to learn about the Library’s programs, podcasts, exhibits, and archives. Ask us your questions…and read about our research.