| 10 Sept 1969 | Official opening of the School for operation |
| 6 Oct 1970 | Inauguration Ceremony by Governor Sir David Trench |
| 2 Mar 1972 | 1st Sports Day |
| 1 Sept 1972 | Opening of matriculation course |
| 22 Nov 1972 | 1st Speech Day |
| 1 Sept 1976 | Retirement of Mr. Law Chung Hung and succession of Mr. Leung Sau Chi as Principal |
| 4 Dec 1978 | 10th Anniversary Celebration Dinner |
| 27 Apr 1979 | Appointment of Mrs. Irene Cheung Yok Luen as Supervisor of the School |
| 4 May 1983 | Formation of Old Students’Association |
| 28 Sept 1984 | 1st Swimming Gala |
| 15 Dec 1985 | 1st Parents’Day |
| 3 Dec 1988 | 20th Anniversary Nite |
| 16 Dec 1988 | 20th Anniversary Open Day Opening Ceremony |
| 8 Apr 1989 | 20th Anniversary Alumni Reunion Dinner |
| 29 Oct 1993 | Formation of Students’Association |
| 12 Dec 1993 | 25th Anniversary Open Day-cum-Parents’Day Opening Ceremony |
| 5 Sept 1995 | Implementation of School Administration and Management System |
| 1 Sept 1998 | Launching of the Sunflower Scheme as a Quality Education Fund (QEF) Project |
| 11 Dec 1998 | 30th Anniversary Open Day Opening Ceremony |
| 17 Apr 1999 | 30th Anniversary Alumni Reunion Dinner |
| 15 Jan 2000 | Inauguration Ceremony of Parent-Teacher Association |
| 1 Jun 2000 | Renovation of Language Laboratory into Multimedia Learning Centre (MMLC) funded by QEF Committee |
| 23 Nov 2000 | Visit by Mrs. Fanny Law,GBS,JP,Secretary for Education &Manpower |
| 5 Jul 2001 | Opening Ceremony of MMLC |
| 23 Apr 2002 | Sir Kenneth Fung resigned as Chairman of the School Management Committee and Mr. Chan Kam Toi elected Chairman of the Committee |
| 29 Mar 2003 | School suspension for the prevention of the spread of SARS as advised by Education &Manpower Bureau (EMB) |
| 22 Apr 2003 | Resumption of school for S3 students &above |
| 28 Apr 2003 | Resumption of school for S1 &S2 students |
| 1 Sept 2003 | Resignation of Mr. Leung Sau Chi and succession of Mr. Yuen Tze Lam as Acting Principal |
| 28 Feb 2004 | 35th Anniversary Nite |
| 11 Jun 2004 | 35th Anniversary Alumni Reunion Dinner |
| 1 Sept 2004 | Implementation of the 6-day cycle to replace the traditional 5-day week Implementation of the QEF project - "Pleasurable Reading for Excellence" |
| 8 July 2005 | Formal locking of the time capsule |
| 3,8-10 &14 Mar 2006 | Conduct of the 1st External School Review by the EMB |
| 1 Sept 2006 | Succession of Mr. Chan Kam Toi to the post of School Supervisor after the resignation of Mrs. Irene Cheung Yok Luen |
| 7 Sept 2007 | Conversion of the School Management Committee into the Incorporated Management Committee |
| 4 Oct 2007 | 1st election of Teacher Managers |
| 23 Oct 2007 | Establishment of the CCSC Alumni Foundation Fund |
| 18 Nov 2007 | 1st election of Parent Managers |
| 16 Dec 2007 | 1st election of Alumni Manager |
| 7 Sept 2007 | Conversion of the School Management Committee into the Incorporated Management Committee |
| 20 Mar 2009 | 40th Anniversary Alumni Reunion Dinner |
| 28 Mar 2009 | 40th Anniversary Nite |
| 1 Sept 2010 | Beginning of the alternation of the number of S1 classes in each school year between 4 and 5 |
| 29 Jun 2012 | Release of the Advanced / Advanced Supplementary Level Examination results of the last batch of S7 students of the School |
| 22 - 26 Oct &1 Nov 2012 | Conduct of the 2nd External School Review by the Education Bureau |
| 1 Sept 2013 | Retirement of Mr. Yuen Tze Lam and succession of Mr. Au Chun Keung as Principal |
| 12 Nov 2013 | 45th Anniversary Opening Ceremony |
| 25 Apr 2014 | 45th Anniversary Dinner |
| 5 July 2014 | 45th Anniversary Nite |
| 19 May 2018 | Golden Jubilee Celebration |
