When budo (martial arts) was resumed after being forbidden in school education by the General Headquarters following the World War II, the kamidana was removed from many public school dojos based on the separation of religion and state.
第二次世界大戦後の連合国軍最高司令官総司令部の学校教育への武道禁止の後、武道再開の際、政教分離によって多くの公立の学校道場から神棚が撤去された。