What nickname did Charles Babbage give Ada Lovelace?

Charles Babbage nicknamed Ada Lovelace the “Enchantress of Numbers.” The phrase reflected his admiration for her mathematical imagination and her ability to understand the possibilities of his proposed Analytical Engine.

Lovelace first met Babbage in 1833 through the mathematician Mary Somerville. She became deeply interested in Babbage’s calculating machines, especially the Analytical Engine, a design intended to perform general-purpose computations using punched cards and separate memory and processing mechanisms.

The nickname is sometimes written as “Enchantress of Number,” and later writers have used “Enchantress of Numbers.” These forms refer to the same celebrated description; “Queen of Computers” and similar phrases are modern inventions, not Babbage’s nickname.

Lovelace’s reputation grew especially after her 1843 notes on an article about the Analytical Engine. Her notes included an algorithm for calculating Bernoulli numbers and explained that machines might manipulate symbols, music, or language as well as ordinary quantities. That broader vision helped make her an enduring figure in computing history.