Correct
沿革
/ yángé /
Strokes
Definition
evolution of sth over time/course of development/history
Example
As a Noun
course of change and development; evolution
1
Shèhuì
社会
fēngsú
风俗
de
的
yángé
沿革
evolution of social customs
2
Lìshǐ
历史
yángé
沿革
development of history