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1800 - William Dugdale from England is the first from His area to publish about Dominance and the ownership of the collar. He later becomes active in the erotica publishing trade between 1825 and c.1865 in London, which consists of translations, mainly by James Reddie, and reprints of erotic literature that had been previously published between 1825 and 1840 which include works about rules, regulations and proticals put together for the discriminating erotic Dominant.

1800 – Achille Devéria from France, known best for his illustrations of "Gamiani" and is concidered a Master at rope bondage, leather constraints which include collars and best known for writing the "Liasons Dangereuses" which discribes his Bondage which includes collars. His pen name was Choderlos de Laclos.

1807 – James Campbell Reddie of Glasgow, Lanark, Scotland, son of James Reddie and Charlotte Marion Campbell. Author, publisher, translator and collector of clandestine material which included an extensive whip and collar collection. He often supplies William Dugdale with manuscripts for publication. Reddie's erotica collection is bought by Henry Spencer Ashbee in 1877. Reddie also used the pseudonym C. Vernon Wilson. Reddie's death certificate lists his profession as "Writer to the Signet Erotic"

1809 – The British Prime Minister William Ewart Gladstone of Liverpool England. The four-time Prime Minister of England was dedicated to self-flagellation and self collaring for training and used both to punish himself for impure thoughts and to achieve a pleasure from the act, which he then repented. This is official printed facts archived in public Official Scripts of England.

18oo – The Marquis De Sade writes many concepts of collaring whilst training the woman he inflicted his desires apon while inprisioned befor his death.

pre 1600 De Figuris Veneris, a collection of ancient Greek and Roman texts referring to a great variety of sexual erotic behaviors which include great details of how slaves are collared and trained and punished while within the leather bindings.

1825 – William Lazenby [alias Duncan Cameron and possibly Thomas Judd] becomes bookseller and publisher of clandestine erotica and sm in London, actively between c.1873 and 1886. Sometime in 1884 he begins collaborating with Edward Avery. Lazenby was arrested in 1876 for "soliciting and inciting Charles Drew Harris to sell or publish certain obscene, wicked and lewd books" and again in 1886 when he was prosecuted and imprisoned at age 61 for "unlawfully selling in an open public shop certain lewd sm direction books, indecent photographs of pony girls no doubt in leather collars and other articles.

1828 – Theresa Berkley, the owner of a flagellation and sm brothel in Charlotte Street no. 28, London, has a special strap down and whipping bench constructed of wood and leather which becomes known as the "Berkley Horse". Upon her death the original Berkley Horse goes to the London "Society of Arts" for posterity.

1834 – Author of THE bibliography source book for 19th century erotica "The Bibliography of Prohibited Books", Henry Spencer Ashbee, writes. Ashbee owned or had access to the majority of the books he listed in the bibliography which gives details of the many erotic styles of the best known practictioners of such construded lewd and indecent actions including the proper application of collars to slaves and concubines for punishment or control.

1836 – The Austrian author and involuntary eponym of "masochism", Leopold Ritter von Sacher-Masoch, of Lemberg, Galicia writes about his enslavement by his Mistress and his years under Her collar.