This information can be found on the official NJHS website:
More than just an honor roll, NJHS serves to honor those students who have demonstrated excellence in the areas of scholarship, service, leadership, character, and citizenship. These characteristics have been associated with membership in the organization since its beginning in 1929.
The National Association of Secondary School Principals (NASSP) officially established NJHS in 1929, eight years after it founded National Honor Society for high school students. Under the leadership of Dr. Edward Rynearson, principal of the Fifth Avenue High School in Pittsburgh, the organization grew from the original Alpha Chapter at the Fifth Avenue School to more than 1,000 chapters by 1930. Equipped with a constitution, an emblem and motto, and a group of dedicated principals as coordinators, the new NJHS organization quickly developed into one of the country’s leading educational groups.