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Primary sourceDocument11 September 1736

Fahrenheit's Last Will Signature

Daniel Gabriel Fahrenheit · 11 September 1736

Fahrenheit's signature from his last will, drawn up in The Hague days before his death in 1736.

This signature is Fahrenheit's own hand, from the will made just before his death.

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Handwritten cursive signature in ink on a white background: large looping initials D and G, with the surname written below as 'renheit' and a flourished 'Fa' to the right, forming Fahrenheit's signature.
Signature of Daniel Gabriel Fahrenheit, from his last will, 11 September 1736, The Hague.

About this source

What it is

This is the signature of Daniel Gabriel Fahrenheit, taken from his last will, drawn up by notary Willem Ruijsbroek in The Hague on 11 September 1736.

Why it matters

A will marks the end of a person's life and the settling of their affairs. This signature is a direct, physical trace of Fahrenheit himself, written only days before he died, connecting the historical figure to a real document from his final days.

Look closer

  • What can a handwritten signature tell us that a printed name cannot?
  • Why might historians value a document like a will for understanding a person's life?
  • What questions does a signature alone leave unanswered about a person's final days?

This document is part of the curated material that grounds the AI version of Daniel Fahrenheit on Humy.ai — when students ask about related events, the AI can quote it and cite it.

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Scanned page 1 of a 1724 journal article titled 'Experimenta circa gradum caloris liquorum nonnullorum ebullientium instituta' by Daniel Gabriel Fahrenheit, printed in Latin with a page number '(1)' at top and 'Vol. XXXIII' footer.Document

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Experimenta circa gradum caloris liquorum nonnullorum ebullientium instituta

Daniel Gabriel Fahrenheit · 1724

Engraved plate titled 'Philosoph. Transact. N° 385' with eight numbered figures (I to VIII) of glass barometer and thermometer apparatus, including tubes, bulbs, scales, and stands, drawn in black and white.Document

Primary source

Barometri novi descriptio

Daniel Gabriel Fahrenheit · 1724

Printed page numbered 114 from a journal. Top text describes dog experiments with tinctures. Below a rule, a section heading reads 'VI. Materiarum quarundam gravitates Specificae' by D. G. Fahrenheit, followed by a list of metals and materials with specific gravity values.Document

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Materiarum quarundam gravitates specificae

Daniel Gabriel Fahrenheit · 1724

Black handwritten signature on a white background reading D. G. Fahrenheit in flowing cursive script, with large looping initial letters and a long underline-like stroke.Document

Primary source

Signature of Daniel Gabriel Fahrenheit

Daniel Gabriel Fahrenheit

A bronze memorial plaque on a white wall with Dutch text reading 'In de Kloosterkerk werd begraven Daniel Gabriel Fahrenheit', with birth and death details and a relief of a thermometer in the center.Artifact

Secondary source

Grave of Daniel Gabriel Fahrenheit

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