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Ada Lovelace: The First Computer Programmer & Analytical Engine

Encyclopedia/2. Technology & The Built World/1. Computing, AI & Information Technology/06. Computing & Tech Biographies  •  Curated by Admin Timeline.sg

Timeline of Ada Lovelace, the English mathematician who wrote the first algorithm intended for Charles Babbage's Analytical Engine, earning her recognition as the first computer programmer. The timeline covers her life from birth to legacy.

Chronological Storyline (39 Milestones)

Dec 10, 1815 CE

Ada Byron is born

Ada Byron, the only legitimate child of poet Lord Byron and Anne Isabella Milbanke, is born in London. Her parents separate shortly after. #history #computing

Ada Byron is born
Ada Byron is born
By Antoine Claudet - shared by Paul Graham on x.com https://x.com/paulg/status/1927655441913250041, Public domain, https://commons.wikimedia.org/w/index.php?curid=166285599
1815 CE

Lord Byron leaves England

Under pressure from scandal and debts, Lord Byron leaves England forever, never seeing his daughter Ada again. He dies in Greece eight years later. #poetry #history

Apr 21, 1816 CE

Parents' separation formalized

Anne Isabella Milbanke formally separates from Lord Byron, obtaining custody of Ada. Ada's mother discourages her from poetry to prevent her from developing her father's 'madness'. #family #history

1816 CE

Ada is baptized

Ada is baptized as Augusta Ada Byron at St. Mary's Church, Harrow. She later drops 'Augusta' from her name. #religion #history

Apr 19, 1824 CE

Lord Byron dies

Lord Byron dies of fever at age 36 in Missolonghi, Greece, while fighting in the Greek War of Independence. Ada never knew him personally. #poetry #history

1828 CE

Ada designs a flying machine

At age 12, inspired by studies of birds, Ada designs a flying machine with wings and a steam engine. She writes a book 'Flyology' to document her research. #invention #science

1829 CE

Ada contracts measles

A severe bout of measles leaves Ada temporarily paralyzed and bedridden for over a year. She continues her studies during recovery. #health #history

1832 CE

Begins studying advanced mathematics

Ada's mother hires tutors in mathematics, including William Frend and later Augustus De Morgan. Ada shows exceptional talent in logic and mathematics. #education #mathematics

Jun 5, 1833 CE

Meets Charles Babbage

At a party hosted by their mutual friend, Ada meets Charles Babbage, inventor of the Difference Engine. This meeting sparks a lifelong collaboration. #technology #computing

1833 CE

Meets Mary Somerville

Ada meets Mary Somerville, a renowned Scottish science writer and mathematician, who becomes her mentor and friend. Somerville encourages Ada's mathematical studies. #womeninSTEM #science

1834 CE

First visit to Babbage's Difference Engine

Ada visits Babbage's workshop to see the Difference Engine, a mechanical calculator. She is fascinated and begins to understand its potential. #technology #computing

Jul 8, 1835 CE

Marries William King

Ada marries William King, a future baron. They have three children. Ada takes the title Countess of Lovelace after William becomes Earl of Lovelace. #marriage #history

1835 CE

Becomes Countess of Lovelace

William King is made Earl of Lovelace, and Ada becomes Countess of Lovelace. She continues to be known as Ada Lovelace. #nobility #history

May 12, 1836 CE

Birth of son Byron

Ada gives birth to her first child, Byron King-Noel, named after her father. He later inherits the earldom. #family #history

Sep 22, 1837 CE

Birth of daughter Anne

Ada's second child, Anne Isabella (later Lady Anne Blunt), is born. Anne becomes a noted breeder of horses. #family #history

1838 CE

Babbage demonstrates Difference Engine No. 1

Babbage completes a small segment of Difference Engine No. 1, which Ada sees demonstrated. The machine can compute tables of numbers. #technology #computing

Jul 2, 1839 CE

Birth of son Ralph

Ada's third child, Ralph Gordon King-Noel, is born. He later becomes a vice-admiral in the Royal Navy. #family #history

1839 CE

Studies with Augustus De Morgan

Ada begins private correspondence study of advanced mathematics with Augustus De Morgan, a prominent mathematician. He praises her originality. #education #mathematics

1840 CE

Babbage lectures on Analytical Engine in Turin

Charles Babbage gives a series of lectures on his proposed Analytical Engine at the Academy of Sciences in Turin, Italy. The lectures are attended by mathematician Luigi Menabrea. #technology #computing

1841 CE

Ada's mother reveals Lord Byron's letters

Ada's mother, Anne Isabella, gives her letters from Lord Byron and a box of his belongings. Ada is emotionally affected and reflects on her father's legacy. #family #history

Oct 1, 1842 CE

Menabrea's article on Analytical Engine published

Luigi Menabrea publishes a paper in French on Babbage's Analytical Engine. Ada is asked to translate it into English. #technology #computing

1842 CE

Ada begins translation work

Ada starts translating Menabrea's article, but expands it with her own extensive notes, which become longer than the original article. #literature #computing

Aug 1, 1843 CE

Ada publishes 'Notes by the Translator'

Ada's translation 'Sketch of the Analytical Engine' with her own notes is published in Richard Taylor's Scientific Memoirs. Her 'Note G' contains the first published algorithm. #computing #history

1843 CE

Ada envisions music composition by machine

In her Notes, Ada speculates that the Analytical Engine could compose music and graphics, demonstrating her understanding of its universality. #computing #music

1843 CE

Correspondence with Babbage intensifies

Ada and Babbage exchange many letters during the preparation of the Notes. Ada proposes suggestions for the Analytical Engine, including the use of punched cards. #technology #computing

1844 CE

Ada attempts a mathematical gambling system

Ada becomes interested in using mathematical probability to win at gambling. She and her husband try to develop a system but lose money, leading to debt. #gambling #mathematics

1845 CE

Ada corresponds with Michael Faraday

Ada begins a correspondence with scientist Michael Faraday about electrical experiments and the nature of light. #science #history

1846 CE

Ada's health declines

Ada suffers from chronic illnesses, including asthma and digestive issues. She becomes increasingly dependent on medication and sees numerous doctors. #health #history

1848 CE

Gambling debts accumulate

Ada's gambling losses mount. She is forced to pawn family jewels and borrow money to cover debts. #gambling #history

1850 CE

Ada experiences serious illness

Ada's health worsens dramatically. She is diagnosed with uterine cancer, which becomes incurable. #health #cancer

1851 CE

Ada's mother arrives for care

Ada's mother, Anne Isabella, takes charge of her medical care and household, moving into Ada's home to nurse her. #family #history

Nov 27, 1852 CE

Ada Lovelace dies

Ada Lovelace dies of uterine cancer at age 36 in Marylebone, London. She is buried next to her father at the Church of St. Mary Magdalene in Hucknall, Nottinghamshire. #death #history

1852 CE

Posthumous publication of her notes

Ada's Notes continue to be studied by mathematicians and historians. They are reprinted in various scientific collections. #computing #history

1953 CE

Notes republished by B.V. Bowden

Bertram Vivian Bowden includes Ada's 'Notes' in his book 'Faster Than Thought: A Symposium on Digital Computing Machines', reintroducing her work to a modern audience. #computing #literature

1980 CE

Ada programming language named

The U.S. Department of Defense names the new programming language 'Ada' in honor of Ada Lovelace. The language is designed for large-scale, real-time systems. #computing #programming

Oct 7, 2009 CE

First Ada Lovelace Day

Ada Lovelace Day is celebrated for the first time, aiming to raise the profile of women in science, technology, engineering, and mathematics (STEM). #womeninSTEM #history

2012 CE

Google Doodle honors Ada

A Google Doodle commemorates Ada Lovelace's 197th birthday, featuring the Analytical Engine and her algorithm. #computing #doodle

Dec 10, 2015 CE

200th birthday celebrations

Ada's bicentennial is celebrated worldwide with exhibitions, lectures, and events highlighting her contributions to computing. #history #computing

2018 CE

Statue unveiled at the University of Cambridge

A bronze statue of Ada Lovelace is unveiled at the University of Cambridge to honor her legacy and inspire future generations. #womeninSTEM #history