During the 1840s, the screw propeller emerged as the most likely method of steam propulsion, with both Britain and the USA launching screw-propelled warships in 1843.

During the year 1843 the air was full of different conspiracies and various other ill-starred attempts at nationalist uprisings were made.

During the 1840s, many U. S. cities were in debt ; roughly by 1843 cities had about 25 million in outstanding debt.

During the Great Migration of 1843 an estimated 700 to 1, 000 American settlers arrived via the Oregon Trail.

During Russian Empire occupation it was the capital of the Kovno Governorate from 1843 to 1915.

During this period he issued Lieder der Gegenwart (“ Songs of the present ,” 1842 ) and Zensurflüchtlinge (“ Refugees from censoring ,” 1843 )-the poetical fruits of his political enthusiasm.

During this busy period he found leisure for literature, and published in 1843 a translation of the Manuscript of the Queen's Court, a collection of Czech medieval poetry, today considered as falses by Czech poet Václav Hanka.

During his years of exile, Garibaldi was involved in a military action in Uruguay, where in 1843 he originally used red shirts from a stock destined for slaughterhouse workers in Buenos Aires.

During this time, Town also designed the Potomac Aqueduct in Washington, D. C. ( 1833 – 1843 ), which allowed fully loaded canal boats to cross the Potomac River.

* Excerpts from Solar Observations During 1843 by Heinrich Schwabe.

During the 19th century, several mine towers were raised in and around the city and the first steel works were established at Vítkovice, acquired by Salomon Mayer von Rothschild in 1843.

During the nineteenth century the book was very popular and was, according to The Times in 1843, " a book which, of all others, if you ask for it at a foreign library, you are sure to find engaged ".

During 1842 and 1843, there was an economic recession in the Port Phillip District, and Williamstown's population somewhat declined.

During this time, he became interested in the case of the slave Polly Berry, who in 1843 gained her freedom decades after having been held illegally in the free state of Illinois for several months.

During the Great Migration of 1843, the fords used for crossing this meandering river were among the many topographic challenges emigrant wagon trains had to master along the Fremont-Westport Trail ( 1843-1848 ) named after John C. Frémont.

During May 1843, Vianney fell so ill he thought that his life was coming to its end.

During the Second World War, the orchestra continued to rehearse, but gave only one concert ( in April, 1843, when the Town Hall was filled to capacity ).

During 1843, before the main line was complete, the SER and the L & CR became anxious about the charges imposed by the L & GR for the use of the terminus at London Bridge and its approaches.

During the period of the initial Provisional Government of Oregon, the 1843 Organic Laws of Oregon provided for a militia.

During the construction of 1843 the company ran a rail line through land now designated as the Ocmulgee National Monument, an important Native American site sacred to the Creek Indians, and partially destroyed the Lesser Temple Mounds.

He was elected president of the society in 1843 retiring from the post in 1887. During this time he held together the rather fractious German entomologists and the society flourished.

During his extended stay in Ellerstadt, Meier married a local woman, Jeanette Hirsch ( 1843 – 1925 ) and returned with her to Portland.

During 1839 he served with the West Indies Squadron and the receiving ship in Baltimore, before being assigned to the Pacific Squadron in 1843.

During the ceremony, the Navy Minister Saigo Tsugumichi ( 1843 – 1902 ) declared:

* Sections 135 – 136 — During the administration of the Twelve ( 1844 – 1847 )

During Charles XIV reign ( 1818 – 1844 ), the first stage of the Industrial Revolution reached Sweden.

During February 1844, the Duke of Richmond initiated the Central Agricultural Protection Society ( CAPS, commonly known as the " Anti-League ") to campaign in favour of the Corn Laws.

During 1844, the agitation subsided as there were fruitful harvests.

During 1844 Dumas moved to Saint-Germain-en-Laye to live with his father.

During 1844 – 45, Barnum toured with Tom Thumb in Europe and met Queen Victoria, who was amused and saddened by the little man, and the event was a publicity coup.

During the years of his peak popularity, from roughly 1832 to 1844, Rice often encountered sold-out houses, with audiences demanding numerous encores.

* Alfred Russel Wallace described events occurring in the Baltic in 1844: " During the disturbances at the Cemetery of Ahrensburg in the island of Oesel, where coffins were overturned in locked vaults, and the case was investigated by an official commission, the horses of country people visiting the cemetery were often so alarmed and excited that they became covered with sweat and foam.

The Journal of an Overland Expedition in Australia, from Moreton Bay to Port Essington, a Distance of Upwards of 3000 Miles, During the Years 1844 and 1845 by Leichhardt describes this expedition.

During the reign of Charles XIV John of Sweden ( reign 1818 – 1844 ), the palace was abandoned.

During " Nativist riots " in Philadelphia in 1844, mainly directed toward Irish Catholic immigrants, Governor Porter acted firmly to suppress violence.

During the winter 1844 – 45 he gave a piano course for selected students at the Paris Conservatoire.

During the first presidency from 1844 to 1848, he brought the country back from excessive conservatism to a traditional climate and restored relations with the Church in Rome.

During the Qing Dynasty, the district was initially named Balanbong, which was renamed to Dalongtong in 1844.

During the reign of Nara Singh, the capital was shifted to Kangla in 1844.

During the reign of Louis Philippe I, he was removed from Saint-Michel and placed in the Chapelle royale de Dreux on 2 April 1844.

During the 1820s, the Nepean district's most famous early settler, the landowner and physician Sir John Jamison ( 1776 – 1844 ), erected a magnificent Georgian house on the model estate which he had established on a rise overlooking the river, not far from the present-day City of Penrith.

During his years abroad there were visits home on leave, and after settling in Russia in 1844 he would sometimes spend short periods on the family estate at Ovstug.

Between 1844 and 1846, Worden was stationed at the Naval Observatory in Washington, D. C. During the Mexican-American War, he cruised the west coast, primarily in the store ship Southampton, but in other ships as well.

" During his tenure in the state capitol, Springfield, Illinois, rising tensions in Nauvoo, Illinois gave way to violence when on June 27, 1844, the founder of the Latter Day Saint movement, Joseph Smith, Jr. was killed by a mob after surrendering to the custody and protection of the state.

During the years of the Republic of Texas, he was a judge of the Fifth Judicial District, secretary of the treasury in 1844, adjutant general in 1845, and delegate to the Convention of 1845.

During an exhumation in 1844 it was found that the grave contains a skeleton and some remains of clothes, but all offerings have been looted, presumably during the thirty year war.

During Tucker's two-year term ( 1842 – 1844 ), the Democratic Party remained divided over the bond issue.

By 1808 much of Nash's work was replaced with a more solid structure, when it was discovered that he had used unseasoned timber in beams and joists ; all of Nash's work at Corsham save the Library was destroyed in remodelling by T. Bellamy ( 1844 – 49 ), During the ownership by Paul Methuen the first Baron Methuen who was Member of Parliament for Wiltshire and Wiltshire North.