1944 – 19 to 22 August – Cala Figuera de Santanyí –Mallorca – Spain. The first Cursillo was held, taking as a basis the text "study of environment" and using some texts of the "Cursillo for Advanced Pilgrims", with a duration of three and a half days, adjusting the contents with a different purpose: was intended mainly to the "far away". Eduardo Bonní served as "rector", being Spiritual Director the Reverend Father Juan Juliá. The rest of the team was composed by Jaime Riutor and José Ferragut, with the participation of fourteen young boys.

1949 – 7 to 10 January – Saint Honorat Monastery – Mallorca – Spain. Begins the numbering of Cursillos and was held the "Cursillo number 1", in which were used the definitive rollos and meditations schemes. The Spiritual Director was the Reverende Father Guilormo Payeras, the "rector" was Eduardo Bonnín and the rest of the team was Bartolomé Riutort, Andrés Rullán, Guillermo Estarellas and Guillermo Font. Mons. Juan Capó presented the two meditations of the retreat (on the first night) with a style so young and with so much theological content, which was incorporate on the method proposed by Eduardo Bonnín. That same year there were over twenty other Cursillos.