Have you ever considered what it means to be a citizen? From the 19th century, more and more civil rights. Unfortunately not everyone.
Follow your politics? It is sometimes very complicated. There are many currents with a different view. This arose in the epoch of the 19th century.
In this epoch was the voice of the people getting bigger. As a result, it comes that we today, demanding that new elections be held.
In the epoch of the industrial revolution gave rise to the first factories. It employed a lot of people at low wages and under poor conditions.
The history gives you lots of answers to questions about the world of now. Is it really makes sense that English is the main language of the world?