In printing: Three-dimensional printing (1960s)

…Of imperceptible parallel strips (Xograph process). On account of these strips, each eye, looking at the print from a different angle, sees only one image. The three-dimensional illusion is produced when this binocular vision is interpreted by the brain.

 Pope Paul VI (Latin: Paulus VI; Italian: Paolo VI; born Giovanni Battista Enrico Antonio Maria Montini, Italian: [dʒoˈvanni batˈtista enˈriːko anˈtɔːnjo maˈriːa monˈtiːni]; 26 September 1897 – 6 August 1978) was head of the Catholic Church and sovereign of the Vatican City State from 21 June 1963 to his death in August 1978. Succeeding John XXIII, he continued the Second Vatican Council, which he closed in 1965, implementing its numerous reforms. He fostered improved ecumenical relations with Eastern Orthodox and Protestant churches, which resulted in many historic meetings and agreements. In January 1964, he flew to Jordan, the first time a reigning pontiff had left Italy in more than a century