Beginning of Salesian Work: December 08, 1841
Adoption of the name “Salesian”: January 24, 1854
First Superior Council: December 18, 1859
“Decretum Laudis” for the Society: July 23, 1864
Approval of the Salesian Society: March 01, 1869
Approval of the Salesian Constitution: April 03, 1874
Rectors Major of the Congregation