In contrast to the European revolutions of the mid-19th century from the revolutions of the 18th century?

In contrast to the European revolutions of the mid-19th century from the revolutions of the 18th century? What forces were involved and what results did they bring?

In the 18th century, revolutionary forces fought against the feudal system, autocracy. The uprisings in England, Germany, France led to a change in political leaders and to the limitation of the power of the ruler. After the revolutions of the 18th century, capitalist relations spread, classes and market relations arose. In the 18th century, the formation of the United States and the exit from the colonial dependence of many other states took place. In the 19th century, many revolutions were aimed at overthrowing the monarchy and introducing a constitution. Social democratic circles were formed.