Age: 20 April 18, 1672 De La Salle suspends his studies in Paris and returns to Reims to take charge of his family, arriving home five days later.
Age: 20 June De La Salle asks a fellow canon and priest at the Cathedral of Rheims, Nicolas Roland, to be his spiritual director.
Age: 21 May/August After death of parents, DLS returns to school, this time in Reims. He begins with a couple of courses, obtains credit for those he took at St. Sulpice, and gradually resumes his seminary studies.
Age: 24 March 21, 1676 De La Salle is ordained as a deacon in the chapel of the Archbishop of Reims by the bishop of Bethlehem, François de Batailler, who was delegated to do so by the archbishop of Paris.
Age: 26 January 26, 1678 Obtains his Licentiate in Theology from the University of Reims, along with four others. The poster announcing the event was discovered in 1908.
Age: 26 April 9, 1678 De La Salle is ordained to the priesthood in the chapel of the Archbishop of Rheims by the archbishop, Monsignor Charles Maurice le Tellier, who officiates and presents the documents of ordination.
Age: 26 April 10, 1678 De La Salle celebrates his first Mass in the Lady Chapel of the cathedral (Notre Dame du Saint Lait). Nicolas Roland (who died 17 days later) and his family are among those present. Since 1951, the statue of DLS by Lejeune stands next to this chapel.
Age: 26 April 27, 1678 Nicolas Roland dies, leaves DLS in charge of obtaining 'Letters Patent' for the Sisters of the Child Jesus, among other things.
Age: 27 November 9, 1678 De La Salle is chosen as an elector at the University of Reims, becoming a member of its governing structure.
Age: 27 February 1679 Secures Letters Patent for the Sisters of the Child Jesus.