Historical Dates and Firsts

The Berlin Wall was a guarded concrete barrier that physically and ideologically divided Berlin from 1961 to 1989. Construction of the Wall was commenced by the German Democratic Republic on 13 August 1961. The Wall cut off West Berlin from surrounding East Germany, including East Berlin.

Arpanet was the first real network to run on packet switching technology (new at the time). On October 29, 1969, computers at Stanford and UCLA connected for the first time. In effect, they were the first hosts on what would one day become the Internet.

The first Mini, or Mark I, was launched in 1959. The Mark I Mini (19591967) was the first version of British Motors Corporation's Mini. It is characterized by its sliding windows, external door hinges and "mustache" grille. In the United Kingdom the Mark I was produced between 1959 and 1967.

Apollo 11 was the first manned mission to land on the Moon. The first steps by humans on another planetary body were taken by Neil Armstrong and Buzz Aldrin on July 20, 1969. The astronauts also returned to Earth the first samples from another planetary body.

A mercury barometer was discovered by Torricelli in the year 1643. 

Cholera first arrived in England in 1831, spreading from the port of Sunderland. This outbreak marked the beginning of several major cholera epidemics in the 19th century.

The second major cholera epidemic in England occurred in 1848, following the initial 1831 outbreak.

Between 1852 and 1923, the world would see four more cholera pandemics. The third pandemic, stretching 1852–1859, was the deadliest. It devastated Asia, Europe, North America and Africa, killing 23,000 people in Great Britain alone in 1854, the worst single year of cholera. Hence, Option A is correct. Among the rest timelines, in 1873-74, the fourth epidemic occurred in Hungary. And the fifth spanned 1892-93. Hence, these are incorrect. 

The four-field crop rotation system, popularized by Charles Townshend, became widely adopted in England around 1730 during the Agricultural Revolution.

The Factory Act of 1833, passed after Sadler had left Parliament, restricted the working day in textile mills to 12 hours for persons aged 13 through 17, and 8 hours for those aged 9 through 12. Sadler's health was fatally impaired by his strenuous work with the committee.The Factory Act of 1833, passed after Sadler had left Parliament, restricted the working day in textile mills to 12 hours for persons aged 13 through 17, and 8 hours for those aged 9 through 12. Sadler's health was fatally impaired by his strenuous work with the committee. Hence, Option A is correct. Among the rest, none of the dates correspond to the bill being passed, hence, incorrect.

Michael Sadler's parliamentary committee, which investigated child labor in factories, was established in 1832.

Fayol's seminal work, Administration Industrielle et Generale, was published in 1916, introducing his administrative theory to the world.

Henri Fayol published his seminal work, Administration Industrielle et Generale, in 1916.

The July Revolution of 1830 in France overthrew the Bourbon monarchs and installed a constitutional monarchy under Louis Philippe. This was a significant event following the restoration of 1815.