He is learning Ancient Greek language.

I am learning Modern Greek.

The Cultural Revolution is a part of China's history.

Old Church Slavonic is the oldest recorded language of the Slavic group.

Old Church Slavonic is the first language written by the Slavs.

It is important for us to respect cultural diversity and understand each other's differences.

UNESCO is an international organization that promotes the development of education, science, and culture around the world.