This book mainly introduces that the world is undergoing extensive and profound changes, and contemporary China is also undergoing extensive and profound changes.

Building a well-off society in an all-round way and accelerating socialist modernization is a lofty mission entrusted to the people of China by the times.

Cultivating citizens with socialist core values is the demand of the development of the times and social progress, and it is also the need of teenagers' own growth and all-round development.

History education plays an important role in improving students' humanistic quality.

Under the guidance of historical materialism, the history curriculum in compulsory education carries forward the national spirit with patriotism as the core and the spirit of the times with reform and innovation as the core, inherits the excellent tradition of human civilization, and enables students to understand and understand the development of human society and better understand contemporary China and the world today.

Through the study of history course, students learn to observe and think about society and life from a historical perspective, draw wisdom from history, gradually establish a correct world outlook, outlook on life and values, improve their comprehensive quality and get all-round development.