January 30 is School Day of Non-violence and Peace or Día Escolar de la No-violencia i la Pau (DENIP.) Begun in 1964 by Spanish poet Llorenç Vidal Vidal as a starting point and support for a pacifying and non-violent education, it is celebrated mostly in Spain and Portugal. The date was chosen in memorial of the assassination of Mahatma Gandhi in 1948 This logo for DENIP was created by Spanish painter and educator Eulogio Diaz de Corral.