The story
Founded by Toru Kumon in 1958.1
Japanese mathematics educator Toru Kumon founded Kumon in 1958, when he opened the first Kumon Math Center in Moriguchi, Osaka. Before creating the Kumon franchise, Kumon taught at Kochi Municipal High School and Tosa Junior/Senior High School. Inspired by teaching his son, Takeshi, Kumon developed a curriculum focused on rote memorization. In 1974, Kumon opened its first center outside Japan in New York, marking the beginning of its international expansion.
Kumon (the company) gained 63,000 students in its first 16 years. In 1974, Kumon published The Secret of Kumon Math, a book that led to a doubling of its size in the next two years. Kumon opened its first United States locations in 1983, and by 1985, it had 1.4 million students.
Kumon attracted national attention in the U.S. after it was implemented at Sumiton Elementary School in Sumiton, Alabama. Sumiton continued to use the Kumon program through 2001.
Kumon has over 26,000 centers worldwide with over 4 million registered students. In 2018, there were 410,000 students enrolled in 2,200 centers in the U.S. There are Kumon centers in over 60 countries and regions worldwide.
In North America, Kumon began a "Junior Kumon" program in 2001, targeted at children aged from 2 to 5 years old.
From Wikipedia’s article on Kumon, shared under CC BY-SA 4.0.4