During the early-to-mid-19th centuries, violent rioting occurred between Protestant " Nativists " and recently arrived Irish Catholic immigrants.

During the early-to-mid-19th century, thousands of back-to-back houses were built to house the growing population, many of which were poorly built and badly drained, and many soon became slums.

During the early part of this century, the Brown & Sharpe works in Providence were unchallenged as the largest single manufacturing facility devoted exclusively to precision machinery and tool manufacture anywhere in the world.

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 17th century, practical alchemy started to evolve into modern chemistry, as it was renamed by Robert Boyle, the " father of modern chemistry ".< ref name =" Deem, Rich 2005 ">

During the 20th century BC the Indo-European Hittites entered the region and gradually established a great empire which was destroyed by invaders in the 12th century.

During the Late Bronze Age circa 2000 BC, they created an empire, the Hittite New Kingdom, which reached its height in the 14th century BC, controlling much of Asia Minor.

During the 1st century BC the Armenians in what had been Urartu established the powerful Armenian kingdom under Tigran who reigned throughout much of eastern Anatolia between the Caspian, Black Sea and Mediterranean.

During this period winter sports were slowly introduced: in 1882 the first figure skating championship was held in St. Moritz, and downhill skiing became a trendy sport with English visitors early in the 20th century, as the first ski-lift was installed in 1908 above Grindelwald.

During the post-World War I period ski-lifts were built in Swiss and Austrian towns to accommodate winter visitors, but summer tourism continued to be important ; by the mid-20th century the popularity of downhill skiing increased greatly as it became more accessible and in the 1970s several new villages were built in France devoted almost exclusively to skiing, such a Les Menuires.

During the Carolingian epoch the custom grew up of granting these as regular heritable fiefs or benefices, and by the 10th century, before the great Cluniac reform, the system was firmly established.

During the fourth century, the Roman emperors commonly employed foederati: Germanic irregular troops under Roman command, but organized by tribal structures.

During the post-Phoenician era of the eighth century a palace was erected and a port was also constructed, which served the trade with the Greeks and the Levantines.

During the 4th century BC, there may well have been some 250, 000 – 300, 000 people in Attica.

During the 5th century BC, the Acropolis gained its final shape.

During the 3rd century, under threat from a Herulian invasion, repairs were made to the Acropolis walls, and the " Beulé Gate " was constructed to restrict entrance in front of the Propylaia, thus returning the Acropolis to use as a fortress.

During the turn of the 20th century British Israelites carried out some excavations of the Hill of Tara in Ireland looking for the Ark of the Covenant – the Royal Society of Antiquaries of Ireland campaigned successfully to have them stopped before they destroyed the hill.

During the 5th century, the Anglii invaded Great Britain, after which time their name does not recur on the continent except in the title of Suevi Angili.

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 quarter century 1826-1850, 41 species and 6 genera of Apicomplexa were named.

During the early 20th century, Alicante was a minor capital that enjoyed the benefit of Spain's neutrality during World War I, and that provided new opportunities for the local industry and agriculture.

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 20th century communications used flags, morse code by radio, line and lights, voice and teleprinter by line.

During the next century Aegina was one of the three principal states trading at the emporium of Naucratis, and it was the only state of European Greece that had a share in this factory.

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 trip, Stans killed two bongos, and after this, their desirability among wealthy hunters rose substantially.

During a trip to Iraq in June 2011, he said that Iraq should pay back the U. S. for all the money it had spent since the invasion, when it becomes a wealthy country.

During the US bull market of the 1920s, there were numerous such vehicles offered privately to wealthy investors.

During his time as Archbishop he adamantly refused to host lavish social gatherings, which made him popular with the common people, but unpopular with wealthy citizens and the clergy.

During the early part of the 20th century, the interior central highlands were settled by British and other European farmers, who became wealthy farming coffee and tea.

During one of his stays in England, Michael's future father married Anna Dorothea Janasz ( Dora ), the daughter of a wealthy immigrant landholder from Poland.

During the 17th and 18th centuries, the shorter smallsword became an essential fashion accessory in European countries and the New World, though in some places such as the Scottish Highlands large swords as the basket-hilted broadsword were preferred, and most wealthy men and military officers carried one slung from a belt.

During this span of time Marsala lived a wealthy period, but the burying of the big harbour of Punta Alga, decided by the emperor Carlo V to stop Saracenis forays, entailed the end of its flowering.

During World War II, wealthy Dutchmen, wanting to prevent a sellout of Dutch art to Adolf Hitler and the Nazi Party, avidly bought van Meegeren's forgeries.

* During his third consulate, the Roman consul Spurius Cassius Viscellinus proposes an agrarian law to assist needy plebeians, a measure violently opposed both by the patricians and by the wealthy plebeians, who have Cassius condemned and executed.

During this period, most of the hair was braided and hidden under wimples, veils or couvrechefs, and in the later half of the 15th century and on into the 16th century, wealthy women frequently plucked out hair at their temples and the napes of their necks, or used depilatory cream to remove it, if it would otherwise be visible at the edges of their hair coverings.

During the reign of another of her second cousins, the unstable Emperor Caligula ( reigned 37-41 ), Messalina was very wealthy, an influential figure and a regular at Caligula's court.

During the whaling era, wealthy Boston sea captains and merchant traders often created estates on Martha's Vineyard with their trading profits.

During the late Ottoman period, the city had a great Christian influence in terms of culture, and a wealthy merchant class who created several Western consulates.

During the European famine of 1194 Haget ordered the construction of shelters in the vicinity of the abbey and provided daily food rations to the poor enhancing the abbey's reputation for caring for the poor and attracting more grants from wealthy benefactors.

During the second half of the 20th century, Valparaíso experienced a great decline, as wealthy families de-gentrified the historic quarter, moving to bustling Santiago or nearby Viña del Mar.

During her youth, the senior Landry was wrongfully accused of the murder of an unpopular but wealthy white landlord, Gridlestone.

During the 17th century, wealthy traders and Huguenot silk weavers moved to the area, establishing a textile industry centred to the south around Spitalfields.

During this time, development bloomed around train and trolley stops, and a number of wealthy families, including those of Captain James Frederick Oyster and Charles I. Corby ( who developed methods that revolutionized the baking industry ), lived or summered in the area.

During the 17th century many wealthy Amsterdam merchant families built their mansions along the river near Breukelen.

During this era and into the early 20th century, a number of wealthy residents from Detroit and other nearby towns built summer homes along the shoreline ( mainly on the southern end ) of Grosse Ile in order to enjoy views of the Detroit River or Lake Erie.

During the 17th century wealthy merchants from Amsterdam would built their estates, such as Huize Akerendam, Huize Westerhout, and Huize Scheijbeeck, in the scenic dunes surrounding Beverwijk.

During the 19th century, the community became a popular haven of wealthy estate owners.

During the first half of the 20th century, Columbus Academy and Columbus School for Girls, both populated primarily by Protestant students from wealthy Anglo-Germanic families, held most of their joint school activities and " mixers " with each other.