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Peter Mark Roget was a British physician, natural theologian and lexicographer. He is best known for publishing, in 1852, the Thesaurus of English Words and Phrases (Roget's Thesaurus), a classified collection of related words. He was a lecturer at the University of Manchester.

from Mental Floss

17 More Offbeat Holidays and Anniversaries to Celebrate in January

On this day in 1779, British lexicographer Peter Mark Roget was born. He is most famous for publishing The Thesaurus of English Words and Phrases (aka “Roget’s Thesaurus”) in 1852. This holiday is a day to honor, celebrate, extol, laud, praise, revere, or salute his contributions.

Peter Mark Roget: The Creator of World's First Thesaurus of English Words and Phrases

JANUARY 18 British thesaurus developer Peter Mark Roget born this day in 1779 (died 1869). BOOK OF THE DAY Roget’s Thesaurus of English Words and Phrases, first published 1852

Statue in memorial to Alan Turing, Sackville Gardens, Manchester, England, United Kingdom, 2011, photograph by Ian Rhodes. Turing, a mathematician and logician, was considered by Churchill to have made the single greatest contribution to the war effort against the Nazis through his code breaking work. He was prosecuted for homosexuality in 1952, chemically castrated, and subsequently committed suicide at age 42, an action the British government would not apologise for until 2009.

Brownsfield Mill in Ancoats, Manchester, was the site of the first workshop of the famous Avro aircraft manufacturer. The company was founded in 1910 by Alliott Verdon Roe and his brother Humphrey Verdon Roe. AVRO went on to produce and develop m aircraft at sites in Woodford, Chadderton, Trafford Park and Alexandra Park. The company went on to manufacture many of the most famous British aircraft of the 20th century including the Manchester, Lincoln, Shackleton and Vulcan.

April 29, 1852 1st edition of Peter Roget's Thesaurus published

Laurence Stephen Lowry was an English artist born in Stretford, Lancashire. Many of his drawings and paintings depict Pendlebury, where he lived and worked for over 40 years, and Salford and its surrounding areas.

Emmeline Pankhurst was a British political activist and leader of the British suffragette movement who helped women win the right to vote

Dorothy Gladys "Dodie" Smith was born in Whitefield and was an English novelist and playwright. Smith is best known for her novel The Hundred and One Dalmatians and The Starlight Barking.