Factory workers had very few rights and worked in horrible conditions for little pay. To fight this they built unions, but in England were not allowed to strike. Finally in 1875 they won the right to strike and peacefully protest.
The Communist Manifesto was a 23 page pamphlet that explained communism, an extreme form of socialism. It argued that everybody should be completely equal. The pamphlet had little effect until the 1900s when it inspired many revolutionaries.
Watt joined with Matthew Boulton, who was an entreprener, to create the Boulton-Watt, a much more efficient, fast steam engine. The Boulton-Watt could be used for trains, boats, and other forms of transportation.