Lewis Henry Morgan was a pioneering American anthropologist and social theorist who worked as a railroad lawyer. He is best known for his work on kinship and social structure, his theories of social evolution, and his ethnography of the Iroquois. Interested in what holds societies together, he proposed the concept that the earliest human domestic institution was the matrilineal clan, not the patriarchal family.

Lewis Saul Benjamin was an English author, born into a Jewish family in London, England and educated privately in England and Germany. From 1896 to 1901 he was known as an actor, though part of his time even then was devoted to literature. His publications include:In the World of Mimes: A Theatrical Novel (1902) The Thackeray Country (1905) Victorian Novelists (1906) Bath under Beau Nash (1907) The Beau of the Regency (1908) William Makepeace Thackeray: A Biography (1909) King Edward VII: His Life & Reign. The Record of a Noble Career The Life and Letters of Laurence Sterne The Life and Letters of William Cobbett An edition of Thackeray's works

Sir Lewis Morris was a Welsh academic and politician. He was also a popular poet of the Anglo-Welsh school.

Lewis Mumford was an American historian, sociologist, philosopher of technology, and literary critic. Particularly noted for his study of cities and urban architecture, he had a broad career as a writer. He made signal contributions to social philosophy, American literary and cultural history, and the history of technology.

James Lewis Thomas Chalmers Spence was a Scottish journalist, poet, author, folklorist and occult scholar. Spence was a Fellow of the Royal Anthropological Institute of Great Britain and Ireland, and vice-president of the Scottish Anthropological and Folklore Society. He founded the Scottish National Movement.

Li Bai, also pronounced as Li Bo, courtesy name Taibai, was a Chinese poet, acclaimed from his own time to the present as a brilliant and romantic figure who took traditional poetic forms to new heights. He and his friend Du Fu (712–770) were two of the most prominent figures in the flourishing of Chinese poetry under the Tang dynasty, which is often called the "Golden Age of Chinese Poetry". The expression "Three Wonders" denotes Li Bai's poetry, Pei Min's swordplay, and Zhang Xu's calligraphy.

Lina Dorina Johanna Eckenstein was a British polymath and historian who was acknowledged as a philosopher and scholar in the women's movement.

Lincoln Austin Steffens was an American investigative journalist and one of the leading muckrakers of the Progressive Era in the early 20th century. He launched a series of articles in McClure's, called "Tweed Days in St. Louis", that would later be published together in a book titled The Shame of the Cities. He is remembered for investigating corruption in municipal government in American cities and for his leftist values.

Titus Livius, known in English as Livy, was a Roman historian. He wrote a monumental history of Rome and the Roman people, titled Ab Urbe Condita, ''From the Founding of the City'', covering the period from the earliest legends of Rome before the traditional founding in 753 BC through the reign of Augustus in Livy's own lifetime. He was on good terms with members of the Julio-Claudian dynasty and was a friend of Augustus, whose young grandnephew, the future emperor Claudius, he encouraged to take up the writing of history.

Elizabeth "Lizzie" Doten was an American poet and a prominent spiritualist lecturer and trance speaker and writer who received special attention for her supposed ability to channel poetry from Edgar Allan Poe after his death. She wrote poetry, fiction, and essays and edited an annual spiritualist publication, Lily of the Valley. She was active on the lecture circuit between 1864 and 1880.