Frederick Douglass vs Hermann von Helmholtz
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Compare the life timelines of Frederick Douglass (1818–1895) and Hermann von Helmholtz (1821–1894) side by side. Their lives overlapped for 73 years, from 1821 to 1894.
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Frederick Douglass (1818–1895)
- — Born into slavery in Talbot County, Maryland Verified
- — Secretly learned to read and write in Baltimore Verified
- — Escaped from slavery to the North Verified
- — Married Anna Murray Verified
- — Published Narrative of the Life of Frederick Douglass Verified
- — Founded the abolitionist newspaper The North Star in Rochester Verified
- — Spoke at the Seneca Falls Convention for women's rights Verified
- — Appointed United States Marshal for the District of Columbia Verified
- — Served as U.S. Minister Resident and Consul General to Haiti Verified
- — Died in Washington, D.C. Verified
Hermann von Helmholtz (1821–1894)
- — Born in Potsdam, Prussia Verified
- — Studied medicine in Berlin Verified
- — Published 'Ueber die Erhaltung der Kraft' Verified
- — Appointed professor of physiology at Koenigsberg Verified
- — Invented the ophthalmoscope Verified
- — Moved to the University of Heidelberg Verified
- — Published 'On the Sensations of Tone' Verified
- — Appointed professor of physics in Berlin Verified
- — Became first president of the Physikalisch-Technische Reichsanstalt Verified
- — Died in Charlottenburg, Germany Verified