1848 European Revolutions

In 1848, there were revolutions across Europe by the middle class against the nobles who controlled the government. They were backed up by workers seeking better lives. Only two countries, England and Russia, survived the revolution untouched.
Why there were so many revolutions in Europe in 1848？
In the first half of the 19th century, there was a huge population growth. In France and Germany, populations grew by more than 40%. Paris grew by more than 100%. So there was a lot more people than before on the same amount of land. This made it easy for ideas to spread and develop qu…