In the 1850s Chicago gained national political prominence as the home of Senator Stephen Douglas, the champion of the Kansas-Nebraska Act and " popular sovereignty " approach to the issue of the spread of slavery.

After 1820, a series of compromises postponed a showdown on the issue of slavery, but in the late 1850s, the new Republican power took political control of the North and promised to stop the expansion of slavery, which implied its eventual death.

In the 1850s, Japan was in political crisis over its increasing inability to maintain its national seclusion policy and the issue of what relations, if any, it should have with foreign powers.

In the 1850s, in the runup to the Civil War, Northern Democrats led by Senator Lewis Cass of Michigan and Stephen A. Douglas of Illinois promoted popular sovereignty as a middle position on the slavery issue.

While the “ Bleeding Kansas ” era is generally regarded as beginning in 1856, the earliest documented uses of the term " jayhawker " during the Kansas troubles were in the late 1850s, after the issue of slavery in Kansas had essentially been decided in favor of the Free State cause.

California had been admitted to the United States in 1850 as a free state, but by the later part of the 1850s, the state was being pulled in different directions over the issue of slavery, and Baker became a leader in the movement to keep California in the Union.

The issue resurfaced in the 1850s with the Fugitive Slave Act and other compromises ; the Universalists, along with various other denominations, vigorously opposed slavery as immoral.

By the 1850s, slavery was still legal in the southern United States, but had been generally outlawed in the northern states, such as Illinois.

Despite compromises in 1820 and 1850, the slavery issues exploded in the 1850s.

Most of the political battles in the 1850s focused on the expansion of slavery, since most assumed that if slavery could not expand, it would wither and die.

In the 1850s, Morse became well known as a defender of America's institution of slavery, considering it to be sanctioned.

The United States had been divided during the 1850s on questions surrounding the expansion of slavery and the rights of slave owners.

Californios ( dissatisfied with inequitable taxes and land laws ) and pro slavery Southerners in lightly populated, rural Southern California attempted three times in the 1850s to achieve a separate statehood or territorial status separate from Northern California.

In the 1850s proposals to build a transcontinental failed because of the disputes over slavery in Washington ; with the secession of the Confederate states in 1861, the modernizers in the Republican party took over Congress and wanted a line to link to California.

By the 1850s the South was vigorously defending slavery and its expansion into the territories.

In the 1850s, he dismissed Sara Jane Lippincott (" Grace Greenwood ") as assistant editor for denouncing slavery in the National Era.

By the 1850s the issues of the expansion of slavery into the western territories and the threat of the Slave Power became the central issues in the nation.

Wentworth, owner of the Democrat, had become by the end of the 1850s a member of the new Republican Party — a turnabout that can be said, with some oversimplification, to have resulted from the politics of the years before the American Civil War when feelings about slavery caused shifting alliances and political turmoil throughout the country.

The main Southern argument in the 1850s was that banning slavery in the territories discriminated against states that allowed slavery, making them second-class states.

Throughout the 1840s and 1850s, Holden advocated Southern rights to expand slavery and at times championed the right of secession, but by 1860 he had shifted his position to support the Union.

The Whigs had warned that annexation of Texas would lead to a crisis over slavery, and they were proven right by the turmoil of the 1850s that led to civil war.

However, as the nation divided over slavery during the 1850s, Morrill's politics changed and he went over to the Republican Party opposed to the expansion of slavery.

Since the beginning of the 1850s, issues regarding slavery had effectively split the state Democratic Party.

The community was originally named Ellensburg in the 1850s, but later took the name Gold Beach after a beach near the mouth of the Rogue River where hundreds of placer mines extracted gold.

He is best known for Wanderjahre in Italien, his account of the walks he took through Italy in the 1850s, and the monumental Die Geschichte der Stadt Rom im Mittelalter ( History of Rome in the Middle Ages ), a classic for Medieval and early Renaissance history.

Another international dimension linked to the county is the large-scale emigration to North America that took place from the 1850s and onwards, which resulted in many Americans returning to the county after Norway became prosperous.

The first direct London to Glasgow trains in the 1850s took 12. 5 hours to complete the journey.

With the collapse of the Whig Party in the 1850s, Democrats took control of the governorship for the duration of the Third Party System, with Charles S. Morehead of the Know Nothing Party being the only exception.

In the 1850s, the Great Indian Peninsular Railway built its railway terminus in this area and the station took its name as Bori Bunder.

The art of topiary, with enclosed garden " rooms ", burst upon the English gardening public with the mature examples at Elvaston Castle, Derbyshire, which opened to public viewing in the 1850s and created a sensation: " within a few years architectural topiary was springing up all over the country ( it took another 25 years before sculptural topiary began to become popular as well )".

The hypothesis of heat death stems from the ideas of William Thomson, 1st Baron Kelvin, who in the 1850s took the theory of heat as mechanical energy loss in nature ( as embodied in the first two laws of thermodynamics ) and extrapolated it to larger processes on a universal scale.

Development of the Cowpen Quay and Waterloo areas began in about 1810 and 1815 respectively, and between the 1850s and 1890s major house building took place in these areas.

In 1903, the observatory took over a facility on the Pic du Midi in the Pyrenees that had been founded by amateurs in the 1850s with the goal of putting a telescope there.

Growth took place from the 1850s into the 1870s as the township developed.

Hoen and his brothers Henry and Ernest took over the E. Weber Company in the mid 1850s upon Edward Weber's death.

In 1829 he moved to Florence, Alabama, and began a mercantile business that his sons took over in the late 1850s.

It has also been suggested that the name means field of blood, due to the alleged Aboriginal tribal fights that took place in the area, or that it is from the pronunciation by Aborigines of windmill, from the one that existed on Darlinghurst ridge until the 1850s.

This new chemistry of the 1850s took the idea of chemical atoms seriously, adopted atomic weights for the elements that strongly resemble the modern ones, and proposed a unitary schematic plan that opposed the dualistic theory derived from the work of Jons Jacob Berzelius.

Charles Suisted took up land in the area in the 1850s and Palmerston came into existence as a camp site in 1862 as the beginning of a route by the Shag Valley to the Central Otago gold diggings.

The magazine took an increasingly pro-Southern and eventually secessionist perspective in the late 1850s and early 1860s.

With the 1850s, railroad planning took place which eventually resulted in the development of the Illinois Central, the Chicago and North Western Railway, reaching Council Bluffs in 1867.

Republicans took over state politics in the 1850s and quickly instigated several changes.

Many of the miners who had rushed the area in the 1850s and early 1860s settled and took up land.

The sixteen year old William headed west to the Washington Territory and took up farming in Whitman County, an area in the Palouse that had been off limits to settlers since the Indian Wars of the 1850s.

The layout and width of Mill Hill Lane still survives much in the form that it took in the 1820s, although the housing was not built until the 1850s.