Now, although the roots of the mystery story in serious literature go back as far as Balzac, Dickens, and Poe, it was not until the closing decades of the 19th century that the private detective became an established figure in popular fiction.

This Europeanization of the law was made explicit by a number of 19th century scholars.

The Civil War was a significant force in the eventual dominance of the singular usage by the end of the 19th century.

In the zoological sciences, some of his observations were confirmed to be accurate only in the 19th century.

His works contain the earliest known formal study of logic, which was incorporated in the late 19th century into modern formal logic.

With the Prior Analytics, Aristotle is credited with the earliest study of formal logic, and his conception of it was the dominant form of Western logic until 19th century advances in mathematical logic.

The term was originally coined in the 19th century by the founding sociologist and philosopher of science, Auguste Comte, and has become a major topic for psychologists ( especially evolutionary psychology researchers ), evolutionary biologists, and ethologists.

From its beginnings in the early 19th century through the early 20th century, anthropology in the United States was influenced by the presence of Native American societies.

In Greece, there was since the 19th century a science of the folklore called laographia ( laography ), in the form of " a science of the interior ", although theoretically weak ; but the connotation of the field deeply changed after World War II, when a wave of Anglo-American anthropologists introduced a science " of the outside ".

The Apollo Belvedere is a marble sculpture that was rediscovered in the late 15th century ; for centuries it epitomized the ideals of Classical Antiquity for Europeans, from the Renaissance through the 19th century.

Early 19th century.

In the Middle Bronze Age an apparently " alphabetic " system known as the Proto-Sinaitic script is thought by some to have been developed in the Sinai peninsula during the 19th century BC, by Canaanite workers in the Egyptian turquoise mines.

From the 19th century it once again became more and more popular.

Yombe people | Yombe-sculpture, 19th century

Portugal has been present in Angola for 400 years, occupied the territory in the 19th and early 20th century, and ruled over it for about 50 years.

Distinctions in vocabulary persist, for example, in culinary terms, where communication with Germans is frequently difficult, and administrative and legal language, which is due to Austria's exclusion from the development of a German nation-state in the late 19th century and its manifold particular traditions.

Until the late 19th century, the axiom of choice was often used implicitly, although it had not yet been formally stated.

The Iron is a famous 19th century landmark in central Norrköping

The museum can be found in the 19th century building The Iron in the Motala ström river in central Norrköping.

With the beginning of the slow decline of the Ottoman Empire in the early 19th century, and as a result of the expansionist policies of Czarist Russia in the Caucasus, many Muslim nations and groups in that region, mainly Circassians, Tatars, Azeris, Lezgis, Chechens, and several Turkic groups left their ancestral homelands and settled in Anatolia.

Later in the 19th century, other missionaries adapted Evans ' system to other Canadian aboriginal languages.

Charles Dickens was a prominent English author of the 19th century.

Leo Tolstoy was a prominent Russian author of the 19th century.

The fortified site described below, originally identified as Abae by Colonel William Leake in the 19th century, is much more likely to be that of the Sanctuary of Artemis at Hyampolis.

The office of Lord High Admiral passed a number of times in and out of commission until 1709, after which the office was almost permanently in commission ( the last Lord High Admiral being the future King William IV in the early 19th century ).

Just as important was the influence of the 19th century English designer William Morris, who had argued that art should meet the needs of society and that there should be no distinction between form and function.

It grew out of the Whig Party in 1859, and William Gladstone carried the party through governments in the late 19th century.

During the 19th century the Liberal Party was broadly in favour of what would today be called classical liberalism: supporting laissez-faire economic policies such as free trade and minimal government interference in the economy ( this doctrine was usually termed ' Gladstonian Liberalism ' after the Victorian era Liberal Prime Minister William Ewart Gladstone ).

Herbert Spencer in Britain and William Graham Sumner were the leading neo-classical liberal theorists of the 19th century.

In the late 19th and early 20th centuries, John Horace Round and Frederic William Maitland, both historians of medieval Britain, arrived at different conclusions as to the character of English society before the Norman Conquest in 1066.

Opened during the 1880s and originally located at 11th Street and University Place, called the Hotel St. Stephan and then after 1902, called The Hotel Albert while under the ownership of William Ryder it served as a meeting place, restaurant and dwelling for several important artists and writers from the late 19th century well into the 20th century.

Francis William Newman expressed the critical view common in the early 19th Century, that if the Hittites existed at all " no Hittite king could have compared in power to the King of Judah ...".

However, the word scientist is relatively recent — first coined by William Whewell in the 19th century.

A good general guide to the commercial activities on Dartmoor at the end of the 19th century is William Crossing's The Dartmoor Worker.

In a comment on the arguments of the 1830s, William Whewell coined the term uniformitarianism to describe Lyell's version of the ideas, contrasted with the catastrophism of those who supported the early 19th century concept that geological ages recorded a series of catastrophes followed by repopulation by a new range of species.

Studies of Charles Darwin's notebooks have shown that Darwin arrived separately at the idea of natural selection which he set out in his 1859 book On the Origin of Species, but it has been speculated that he may have had some half-forgotten memory from his time as a student in Edinburgh of ideas of selection in nature as set out by Hutton, and by William Charles Wells and Patrick Matthew who had both been associated with the city before publishing their ideas on the topic early in the 19th century.

This interest in the " Arthur of romance " and his associated stories continued through the 19th century and into the 20th, and influenced poets such as William Morris and Pre-Raphaelite artists including Edward Burne-Jones.

Later 19th century historians such as William Forbes Skene brought new standards of accuracy to early Scottish history, while Celticists such as Whitley Stokes and Kuno Meyer cast a critical eye over Welsh and Irish sources.

Famous visitors to Luxembourg in the 18th and 19th centuries included the German poet Johann Wolfgang von Goethe, the French writers Emile Zola and Victor Hugo, the composer Franz Liszt, and the English painter Joseph Mallord William Turner.

This situation continued throughout the 18th and 19th centuries, including in the work of Michael William Balfe, and the operas of the great Italian composers, as well as those of Mozart, Beethoven and Meyerbeer, continued to dominate the musical stage in England.

This objection was tendered by William Hazlitt and Thomas Macaulay in the 19th century, and has been restated many times since.

For a time during the 19th century pantheism was the theological viewpoint of many leading writers and philosophers, attracting figures such as William Wordsworth and Samuel Coleridge in Britain ; Johann Gottlieb Fichte, Friedrich Wilhelm Joseph Schelling and Georg Wilhelm Friedrich Hegel in Germany ; Walt Whitman, Ralph Waldo Emerson and Henry David Thoreau in the USA.

Since 1721, every head of the Sovereign's government – with one exception in the 18th century ( William Pitt the Elder ) and one in the 19th ( Lord Salisbury ) – has been First Lord of the Treasury.

It was invented by the Scottish engineer William Murdoch in the 19th century and was later developed by the London Pneumatic Despatch Company.

In the 19th century, there were still British prime ministers who spoke with some regional features, such as William Ewart Gladstone.

William Cunnington was the next to tackle the area in the early 19th century.

The conflict thesis, which holds that religion and science have been in conflict continuously throughout history, was popularized in the 19th century by John William Draper and Andrew Dickson White.

Thomas Bowdler (; 11 July 1754 – 24 February 1825 ) was an English physician and philanthropist, best known for publishing The Family Shakspeare, an expurgated edition of William Shakespeare's work, edited by his sister Henrietta Maria Bowdler, intended to be more appropriate for 19th century women and children than the original.