Margaret W. Rossiter didn’t just study history—she transformed it.

In 1993, she revealed a hidden truth: the Matilda Effect — the systematic erasure of women’s scientific achievements. She named it for suffragist and abolitionist Matilda Joslyn Gage, who had warned the world more than a century earlier.

Rossiter spent decades sifting through archives, letters, and forgotten works, uncovering women who labored without pay, recognition, or even the right to claim their discoveries. Her three-volume Women Scientists in America is more than research — it is reclamation.

Every biography she restored was a quiet revolution, returning women to the center of science where they always belonged. She showed exclusion was never personal failure, but a barrier woven into science itself.

Her work sparked programs ensuring today’s women in STEM receive credit, publication, and remembrance. Honors like the Sarton Medal, a MacArthur Fellowship, and a Guggenheim recognized her, yet the Rossiter History of Women in Science Prize best embodies her mission.

Through decades of dedication, Margaret Rossiter didn’t just restore names. She made sure the world could never claim ignorance again.

#MatildaEffect #WomenInSTEM

\~ The Inspireist
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PROFILE:  Margaret W. Rossiter

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