Highlight the characteristic features in the development of China in modern times?

The period of modern times is considered to be a stage in the development of mankind, which fell on the 16th – 19th centuries.
At this time, China was a monarchical state with a very strong army. Due to the fact that the emperor had unlimited power, the country took the path of isolation.
Because of this, trade and most diplomatic and political ties were suspended.
Due to the constant increase in Europe’s influence on Asian countries, China underwent expansion from England and practically became a new British colony.