| 1917 Jan 16th | Buddhist Girls' College opened at Turret road, Colombo. 20 students enrolled with Dr. Banning as Principal and Mr. W. A. De Silva as Trustee. |
| 1921 | First head girl - Ida Gunawardena |
| First Prize Giving | |
| First Sports Meet | |
| 1923 | Enrollment of Girl Guides |
| 1927 | Renaming of the school to Visakha Vidyalaya at new premises at Vajira Road |
| 1929 | Old Girls' Day Celebration |
| 1933 | Passing away of Mrs. Jeremias Dias |
| 1934 | Founding of the Old Girls' Association |
| 1946 | Introduction of science stream in to the curriculum |
| 1947 | The First Visakha Jayanthi celebrations at the school premises |
| Conferred Grade 1 status | |
| Naming of the Houses - Dias, Dawes, Jayatilaka & Motwani | |
| 1952 | Becomes a non fee levying School |
| 1952 | The 2nd Visakha Jayanthi at the school premises |
| Staging of the "Visakha Geetha Natakaya" | |
| Gifting of the Geethanjali Amarasuriya Memorial Library by Mr. & Mrs. H. W. Amarasuriya | |
| 1961 | Management taken over by the State. |
| 1967 | Visakha Swarna Jayanthi celebrations at the Race Course, Colombo |
| 1971 | Obtains new sports grounds |
| Pulimood House is begun | |
| 1982 | Visakha Jayanthi Carnival |
| 1983 | Opening of the Jeremias Dias Memorial Hall by the President of Sri Lanka |
| The "Bo maluwa" & its precincts completed & gifted by Mr. U. N. Gunasekera | |
| 1987 | Sports pavilion gifted by the OGA |
| "Avurudu Pola" organised by the OGA | |
| 1992 | 75th anniversary celebrations - School Exhibition, Re-staging of "Visakha Geetha Natakaya", Trade & Fun fair at The Sathutu Uyana, Colombo. |
| 1993 | A second modern computer unit was donated to the school by the Old Girls' Association. |
| 1995 | Laying the foundation stone for the Indoor Stadium |
| 1997 | 80th Anniversary celebrations |
| Audio Visual Unit donated in memory of Inoka Gunaratna | |
| 1998 | The Visakha Vidyalaya website - www.visakhav.org - was launched on 04th April, and mainly funded by the old girls in the USA. |
| Establishment of the Clara Motwani Welfare Fund for the benefit of the staff. | |
| The Visakha Vidyalaya archives were established by the OGA and declared open by Mrs. M.N. Edussuriya on her last day of office as principal. | |
| 1999 | Construction of the New School Hostel Building |
| 2001 | Junior Computer Unit donated by the OGA |
| Cafeteria & The Reading Room constructed in the Bogainvillea Building, was donated by the OGA British branch | |
| The first Colours Night | |
| 2004 | State-of-the-art computer centre was donated by the OGA on 01st of Dec |
| 2007 | 90th anniversary celebrations |
| Laying the foundation stone for the school Swimming Pool |