Ada Lovelace

English mathematician (1815–1852)

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Lived 1815–1852, aged 37

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Era
1815–1852
Aged 37

Summary

Updated 2026-06-08

She saw what the machine's inventor didn't: that a calculating engine could do more than crunch numbers. In 1843, Ada Lovelace published notes on Charles Babbage's unbuilt analytical engine that included what's now recognized as the first computer program—and the first argument that such machines might one day manipulate symbols, not just sums.

Biography

About

Augusta Ada Byron was born 10 December 1815, Lord Byron's only legitimate child; her father left a month later and died when she was eight. Raised by her mother Anne Isabella Milbanke, she studied mathematics despite frequent childhood illness. At eighteen she met Charles Babbage at one of his Saturday soirées in June 1833, beginning a working friendship that would define her legacy. She married William King in 1835; when he became Earl of Lovelace in 1838, she became Countess. Lovelace translated Luigi Menabrea's article on Babbage's analytical engine and added seven notes longer than the ori…

Voice

In their own words

Sourced, dated quotes from Ada Lovelace

Ada Lovelace

said1843

We may say most aptly that the Analytical Engine weaves algebraical patterns just as the Jacquard-loom weaves flowers and leaves.

— Notes on the Analytical Engine invented by Charles Babbage (1843)

Ada Lovelace

said1781

The Analytical Engine has no pretensions whatever to originate any thing. It can do whatever we know how to order it to perform.

— Scientific Memoirs edited by Richard Taylor (1781-1858), Volume 3, Sketch of the Analytical Engine invented by Charles Babbage, Esq, Notes

Ada Lovelace

saidundated

Our family are an alternate stratification of poetry and mathematics.

— In a letter to Andrew Crosse, as quoted in Eugen Kölbing's Englische Studien, Volume 19 (1894), Leipzig; O.R. Reisland, "Byron's Daughter",

Ada Lovelace

saidundated

Circumstances have been such, that I have lived almost entirely secluded for some time.

— In a letter to Andrew Crosse, as quoted in Eugen Kölbing's Englische Studien, Volume 19 (1894), Leipzig; O.R. Reisland, "Byron's Daughter",

Ada Lovelace

saidundated

Perhaps you have felt already, from the tone of my letter, that I am more than ever now the bride of science. Religion to me is science, and science is religion.

— Englische Studien, Volume 19 (1894), Leipzig; O.R. Reisland, "Byron's Daughter", p. 157-158.

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