Righteous Among the Nations (Hebrew: חֲסִידֵי אֻמּוֹת הָעוֹלָם ḥasidei ummot ha'olam) is a title used by Yad Vashem to describe people who, for various reasons, made an effort to assist victims, including Jews, who were being exterminated by Nazi Germany during the Holocaust. The term originates from the concept of ger toshav, a legal term used to refer to non-Jewish observers of the Seven Laws of Noah. Source: Wikipedia (en)