The Paleolithic is the first era of human history.

My grandfather was born in the 1900's.

Abstract algebra is a field of mathematics that studies algebraic structures in an abstract way.

I am studying Modern English.

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

We are planning to go to the amusement park this weekend.

He said, 'Misery of life starts at literacy,' and spoke about the hardships of learning.

I maintain my health by doing aerobic exercises every day.

I am planning to travel to the Chugoku region next week.

He persuaded me to join the new project.