During the eighteenth and nineteenth centuries, a controversy exported from Geology, between supporters of James Hutton ( uniformitarianism Thesis ) and Georges Cuvier ( catastrophism ) strongly influenced the field of geography, because geography at this time was a natural science since Human Geography or Antropogeography had just developed as a discipline in the late nineteenth century.

During the eighteenth dynasty ( sixteenth to fourteenth centuries BC ) the title pharaoh was employed as a reverential designation of the ruler.

During the eighteenth century, as it became clear that metals gained weight when they were oxidized, phlogiston was increasingly regarded as a principle rather than a material substance.

During the war-filled years of the eighteenth and early nineteenth century, tax rates in Europe increased dramatically as war became more expensive and governments became more centralized and adept at gathering taxes.

During the eighteenth and nineteenth centuries, many buildings were built with glorious atlantes that look much like the Greek ones.

During the eighteenth century, the figure of the priest, mathematician and botanist José Celestino Mutis ( 1732 – 1808 ), was delegated by the Viceroy Antonio Caballero y Gongora to conduct an inventory of the nature of the Nueva Granada, which became known as the Botanical Expedition, which classified plants, wildlife and founded the first astronomical observatory in the city of Santa Fé de Bogotá.

During the eighteenth century, growing numbers of Han Chinese settlers had illegally begun to move into the Inner Mongolian steppe.

During the eighteenth and nineteenth centuries, this tragic ending was much criticised and alternative versions were written and performed, in which the leading characters survived and Edgar and Cordelia were married ( despite the fact that Cordelia was already betrothed to the King of France ).

During the eighteenth century, Pamplona was considerably beautified and its urban services improved.

During the eighteenth century, the town of Madrid was transformed through several grandiose buildings and monuments as well as through the creation of many social, economical, and cultural institution, some of which are still operating.

During the eighteenth century they made the transition to a horse culture and used firearms to a limited extent.

During the latter eighteenth century, several Franciscans established a settlement on Las Moras Creek near the center of the county.

During the eighteenth century, colonists used slaves to clear land and cultivate plantations in this area.

During the late eighteenth century, the area today known as the state of Indiana was a part of the Northwest Territory, which originally consisted of the later states of Ohio, Indiana, Michigan, Illinois, Wisconsin, and parts of Minnesota.

During the eighteenth century, agents for the Sheffield cutlery industry scoured the country-side of Britain, offering new carriage springs for old.

During the eighteenth century rowing competitions for watermen became established on the Thames, and the prize was often a new wherry.

During the digs near the Mount Li burial mound, archaeologists found several graves dating from the eighteenth and nineteenth centuries, where diggers had apparently struck terracotta fragments which were then discarded as worthless back into the back-filled soil.

During the final quarter of the eighteenth century, many of the Company's senior administrators realised that, in order to govern Indian society, it was essential that they learn its various religious, social, and legal customs and precedents.

During the eighteenth century, their reputation in England was relatively low ; as late as 1805, The Critical Review could still credit John Milton with the perfection of the English sonnet.

During the uprising against Burmese rule by Siam's new kings in the late eighteenth century, a Lampang's local leader became Siam's ally.

During the eighteenth century the employment of Negro men and boys spread from the south to the north.

During the eighteenth century approximately 400, 000 left for Portuguese colony of Brazil, despite efforts by the crown to place severe restrictions on emigration.

During the seventeenth and eighteenth centuries, men often wore elaborate and brightly-coloured waistcoats, until changing fashions in the nineteenth century narrowed this to a more restricted palette, and the development of lounge suits began the period of matching informal waistcoats.

During the eighteenth and a large part of the nineteenth centuries, a taste for Chinese art and architecture existed and often resulted in a “ superficial copying ”.

During the nineteenth century these views were protested by virtually all the Latin American writers, though ineffectively, just as the new nations of Africa and Asia protest them, with more effect, today.

During the Middle Ages and the Early Modern Period, Flanders was characterised by the presence of large urban centres (...) at the beginning of the nineteenth century this region ( Flanders ), with an urbanisation degree of more than 30 per cent, remained one of the most urbanised in the world.

During the nineteenth century the town of Beirut became the most important port of the region, supplanting Acre further to the south.

During the nineteenth century, due to the absence of drainage systems and the weak economy of the region, the excess water of this area flooded many acres of the land in the vicinity of residential areas causing a malaria epidemic in the region.

During the nineteenth century, each of the states maintained its militia differently, some more than others.

During the nineteenth century, American militia saw action in the various Indian Wars and the War of 1812, the American Civil War and the Spanish-American War.

During the first half of the nineteenth century, scientists realized that organic compounds can be synthesized in the laboratory.

During the nineteenth and early twentieth centuries, the pearling industry thrived in the relative calm at sea, providing both income and employment to the people of the Persian Gulf.

During the nineteenth century, positional measurements of some stars became precise enough to measure small changes in their location.

During the first part of the nineteenth century the street was almost entirely rebuilt in the Neoclassical manner with palaces inhabited by the highest of the aristocracy.

During the nineteenth century, presidents had few staff resources.

During the nineteenth and early twentieth centuries, " La Marseillaise " was recognised as the anthem of the international revolutionary movement ; as such, it was adopted by the Paris Commune in 1871.

During the nineteenth century, the Manchus were becoming increasingly sinicized, and faced with the Russian threat, they began to encourage Han Chinese farmers to settle in both Mongolia and Manchuria.

During the nineteenth century, Native American tribes resisted the imposition of the reservation system and engaged with the United States Army in what were called the Indian Wars in the West for decades.

During the nineteenth century, Saratoga County was an important industrial center.

During the nineteenth century road transportation improved, and the railway came in 1860.

During the nineteenth and first half of the twentieth century, Segovia experienced a demographic recovery that was the result of relative economic stability.

During the nineteenth and early twentieth centuries several replica Eleanor Crosses were erected, including at Ilam in Staffordshire, Walkden in Lancashire, Sledmere in the East Riding of Yorkshire, and at Queensbury, London.

During the nineteenth and twentieth centuries several important changes occurred.

During the second half of the nineteenth century Charente, like many of France's rural departments, experienced a declining population as the economic prospects available in the cities and in France's overseas empire attracted the working age generations away.