유류분 제도는 1977. 12. 31. 법률 제3051호로 개정되어 1979. 1. 1.부터 시행된 민법에 새로 도입되었다.
The legal reserve of an heir was revised to Act 3051 on December 31, 1977, and was newly introduced into the Civil Act, which took effect from January 1, 1979.