Historians use primary sources like diaries, letters, speeches. And secondary sources like articles.
Use of machinery with the division of labor reduced the required skill level of workers and also increased the output per worker. The factory system<span> was first adopted in Britain at the beginning of the Industrial Revolution in the late 18th century and later spread around the world. It replaced the putting-out </span>system<span>.</span>
The illustration the question refers to is Death's Dispensary (1866) by George Pinwell. You can see it below.
The correct answer is 2, Victorian England.
It refers to the cholera outbreak that happened in the mid-1800s and spread worldwide. This third wave of cholera in the history of humanity is thought to have started in India. It killed more than a million people in Russia and 646 in Britain.
This outbreak pressed the government to improve the sanitation facilities of the country and impacted heavily the public health system.
Answer:
"It brought the Allies closer together." and "It convinced many Europeans that Soviet expansion posed a real threat."
In 1859 50% of the nations wealth, stocks, bonds, land, cash was in slaves owned by southerners. They lost everything. The north pay less on the south slavery was not finish and they where trying to go to the north for better jobs and freedom the south had force slaves to work.
Hope this helps :)