During the 18th century, again, at Hyderabad ( Sind ), two envoys, sent by the Jodhpur chief in regard to a quarrel between the two states, stabbed the prince and twenty-six of his suite before they themselves fell.

During the 18th century there were many innovations in the design of timber bridges by Hans Ulrich, Johannes Grubenmann, and others.

During the 18th century, systems of classification were developed that are comparable to diagnostic keys, where taxa are artificially grouped in pairs.

During its lone Major League season, the team played at Lloyd Street Grounds, between 16th and 18th Streets in Milwaukee.

During much of the 18th century, Ouaddai resisted reincorporation into Darfur.

During the 17th and 18th centuries coin collecting remained a pursuit of the well-to-do.

During the 18th century, jewelers began making pieces with inexpensive glass.

In 1704 like the rest of the tercios, the Spanish dragoons were reorganised into regiments by Felipe V. During the 18th century several additional regiments of dragoons were created in the Spanish Americas, some of them to function as a police force.

During the 17th and 18th centuries, Easter Island experienced severe erosion due to deforestation and unsustainable agricultural practices.

During the 18th and 19th centuries Emsworth was still a busy little port.

During the 18th century gunpowder factories became increasingly dependent on mechanical energy.

During his lifetime and the later half of the 18th century Telemann was very highly regarded by colleagues and critics alike.

During most of the 18th century Spain had arrested its relative decline of the latter part of the 17th century.

During the 18th century, Dutch microscopist Antonie van Leeuwenhoek ( 1632 – 1723 ) discovered " animalcules " in the sperm of humans and other animals.

During the late 18th century and early 19th century, there was considerable social upheaval as a largely agrarian society was transformed by technological advances and increasing mechanization, which was the Industrial Revolution.

During the later part of the 18th century, the Commonwealth attempted fundamental internal reforms.

During the 17th and 18th centuries, not much is known about Bornu.

During the 18th century, it became a center of Islamic learning.

During the late 18th century it gradually disappeared from the musical scene with the rise of the fortepiano.

Many Irish servicemen, particularly sailors, settled in Britain: During the 18th and 19th century a third of the Army and Royal Navy were Irish.

During the 18th century, Dutch East India Company possessions were increasingly focused on the East Indies.

During the Molotov – Ribbentrop Pact negotiations, Ribbentrop was overjoyed by a report from his Ambassador in Moscow, Count Friedrich Werner von der Schulenburg, of a speech by the Soviet leader Joseph Stalin before the 18th Party Congress in March 1939 that was strongly anti-Western, which Schulenburg reported meant that the Soviet Union might be seeking an accord with Germany.

During the 17th and 18th centuries, processed maple sap was used primarily as a source of concentrated sugar, in both liquid and crystallized-solid form, as cane sugar had to be imported from the West Indies.

During the 18th century, the relation of a mile of 6000 ( geometric ) feet, or a minute of arc on the earth surface had been advanced as a universal measure for land and sea.

During the late 19th and early 20th centuries, physicists discovered subatomic components and structure inside the atom, thereby demonstrating that the ' atom ' was divisible.

During the late 19th century, ideas about the legendary nature of Atlantis were combined with stories of other lost continents such as Mu and Lemuria.

During the first half of the 19th century, some of the songs African-Americans sang also began to appear in use for shipboard tasks, i. e. as shanties.

During the 19th century, the fields of science and art became increasingly intertwined as scientists such as Michael Faraday began to study the damaging effects of the environment to works of art.

During the latter half of the 19th century, considerable public improvements were made to the town, which became, despite its neighbouring collieries, a pleasant place to live.

During the final years of the 19th century, while ` Abdu ' l-Bahá was still officially a prisoner and confined to ` Akka, he organized the transfer of the remains of the Báb from Iran to Palestine.

During the 19th century it was enlarged, principally by architects John Nash and Edward Blore, forming three wings around a central courtyard.

During the 19th century, the development of mines led to a new type of naval warfare.

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 ).

During the building boom of the 19th century in the eastern seaboard cities of Boston and New York City, for example, locally made bricks were often used in construction in preference to the brownstones of New Jersey and Connecticut for these reasons.

During the 19th century, the term " casino " came to include other public buildings where pleasurable activities, including gambling, and sports took place.

During the 19th and 20th centuries, coin collecting increased further in popularity.

During the late 1770s and the early 19th century, the Fulani, a pastoral Islamic people of the western Sahel, conquered most of what is now northern Cameroon, subjugating or displacing its largely non-Muslim inhabitants.

During the 19th century in the US, the length of canals grew from to over 4, 000, with a complex network making the Great Lakes navigable, in conjunction with Canada, although some canals were later drained and used as railroad rights-of-way.

During the first half of the 19th century, Cape Breton Island experienced an influx of Highland Scots numbering approximately 50, 000 as a result of the Highland Clearances.

During the 19th and 20th centuries, Chinese philosophy integrated concepts from Western philosophy.

During the late 19th century European and American companies introduced railways to carry to the ports the local production of raw materials intended for exports and also imports from Europe.

During the 19th century, its lower fringes were grubbed out to make strawberry fields.

During the 19th century, carbines were often developed separately from the infantry rifles, and in many cases did not even use the same ammunition, which made for supply difficulties.

During the late 19th and early 20th century mail was used as a material for bulletproof vests, most notably by the Wilkinson Sword Company.

During the 19th and early 20th centuries most monarchies maintained a mounted cavalry element in their royal or imperial guards.

During the 19th century and through the 1940 census, enumeration was accomplished through political districts.

During the last quarter of the 19th century many experiments were done to determine what cathode rays were.

During the late 19th and early 20th centuries, just the opposite was the case with little to no population concentration in major industrial centres as the predominantly rural resource-dependent Maritime economy continued on the same path as it had since European settlement on the region's shores.

During the 19th and 20th centuries, materialistic monism has became the norm.