For 150 years the De La Salle Brothers have been an integral part of education in Sri Lanka. On 27 May 2018 the Brothers, former students and well-wishers marked the 150th Anniversary of the Institute's arrival in Sri Lanka with a thanksgiving Mass in the Provincialate Chapel, Modera, Colombo 15, celebrated by the Apostolic Nuncio, Most Rev. Dr. Pierre Ngugen Van Tot. This event formed part of the wider, year-long Tercentenary Celebration of the death of St. John Baptist De La Salle, Founder of the Institute of the Brothers of the Christian Schools.
In 1868 the De la Salle Brothers arrived in Colombo and assumed the administration of St. Benedict's College, Kotahena, with their motto "Religio, Mores, Cultura." In their first 60 years they founded three more English schools in Colombo: De La Salle College, Modera, St. Joseph´s College, Grandpass in 1905 and St. Mary´s College, Pettah in 1920. The Brothers established seven English schools outside Colombo prior to Sri Lankan Independence in 1948.