The 20th century was marked by significant advancements in science and technology.

This is an important invention of the 20th century.

The atmosphere of the end of the century is drifting in this town.

Many changes occurred at the beginning of this era.

He took a big risk to set up a new business.

The concession territories in China were established by Western countries from the 19th to the early 20th century.

He traveled various countries and learned many cultures.

He traveled to various countries and learned about their cultures.

He has a deep interest in Western culture.

My friend came from China.