| 1998 | The first ever Hartley College Home Page on the Internet is launched from Ottawa, Canada. | |
| 1995 | R. Muhundan wins Scholarship to Australia. Two students win 4 Distinction passes in the A/L. New block, named after the Late Prof. A. Thurairajah, Distinguished Old Boy of the College. . | |
| 1994 | Interact Club formed at College. GCE (A/L) Commerce Union publishes the magazine 'Vanika Viyalalan'. R. Muhundan obtains 4 A's coming 1st in the District and 2nd in the Island. Three others got 4 A's. | |
| 1993 | J. Jegacelvan obtains 4 A's in the A/L coming 1st in the District and Sixth in the Island in the Commerce stream, Six students obtain 3 A's Mr. P. Balasingam retires and Mr. K. Nadarajah succeeds him as Principal. General Knowledge Quiz team wins Luther Jeyasingam Memorial cup for the 2nd year in succession. Wesley Thevasuthar obtains Distinctions in all the subjects including Eng. Literature at the O/L. | |
| 1992 | Special A/L Exam held in April '92. S. Vijayalayan obtains 8 D's in the O/L Exam Dec '92. S. Thayaparan and N. Gananathan obtain 4 A's in the Aug '92 Exam. | |
| 1991 | Special A/L Exam held in April '91. P. Anpalahan and B. Manivannan obtained 4 A's and felicitated by the President. Two students obtained 8 D's in the '91 Exam. | |
| 1990 | Entire school is shifted back to the old site. Constriction work stalled due to the eruption of war. K. Anadakumar tops at the A/L Exam (1989) scoring 366 marks and win scholarship to Cambridge. O/L and A/L Exams are not held. Rathan Markandan, B. Kannan and K. Sabeasan wins scholarship to Australia. | |
| 1989 | Buildings are handed back by the IPKF to the Principal. Issue of a Stamp and First-Day Cover to commemorate the 150th Anniversary of the College. Celebration in Colombo and Pt. Pedro held on 5th June. Work on the 12 million ADB building project starts. V. Nithianandan wins scholarship to Australia. B. Maniyamaran obtained 8 D's in the O/L. | |
| 1988 | Fourteen pupils obtain distinctions in all the 8 subjects and thirteen obtain distinctions in 7 subjects in the 1987 GCE (O/L) Examination and in the GCE (A/L) one obtained 4 A's and several obtained 3 A's. All these pupils were given cash prizes by the P.P. A. (Colombo Branch) | |
| 1987 |
Vallipuram Vasanthan(Capt. Miller) becomes the first ever Black Tiger after
attacking the newly created Sri Lankan Army camp in Nelliaddy.
Hartley is made a Core - School under the Cluster System embracing fourteen schools and the Principal is appointed as the Head of the Cluster. | |
| 1985 | The School is shifted in to a village 3 Km away to Puttalai MV due to the camp of Sri Lankan Armed Forces. Mr. W. N. S. Samuel retires and Mr. P. Balasingam, B. A., becomes the Principal. | |
| 1984 | Three students obtain 8 Distinctions in GCE O/L. The Library with 6690 Books and a few class rooms are burnt by the Sri Lankan Armed Forces that occupied the buildings North of the School. | |
| 1983 | The Pooranampillai Block is opened. Old boy V. S. Kirubaharan donates for Laboratory Equipment. The Colombo O. B. A. builds up a Sports Fund and starts giving Rs. 5000/- every year for Games. It also gives Cash Prize to pupils doing best at the GCE (O/L) and (A/L) Examination and are good all - rounders. The Principal inaugurates a branch of the Hartley College O. B. A. in London. | |
| 1982 | At the 1982 A. L. Exam, three get four Distinction Passes two being twins, Hartley being the only School in the Island to get these results. T. Kugarajah gets the highest aggregate in the Island. V. Sivaraman wins the Gold Medal - The Rockwood Gold Medal for Surgery - University of Colombo. | |
| 1981 | K. Ramakrishan tops at the A. L. Exam scoring 360 marks. Three get four Distinction Passes. | |
| 1980 | Thamotheram Memorial Laboratory, for which foundation was laid in 1953, is completed and opened. A. Chandrakumar gets four Distinction Passes in the A. L. Exam. | |
| 1979 | Four Hartleyites win four Distinction Passes at the A. L. Exam. | |
| 1978 | M. Vavanendrakumar four Distinction Passes at the A. L. Exam. | |
| 1976 | N. Vasanthanathan becomes School boy Cricketer North. | |
| 1975 | Mr. W. N. S. Samuel, B. A., succeeds Mr. P. Ahamparam, who goes away on a Zambian Government Appointment. | |
| 1973 | Mr. C. Rajadurai leaves as Chief Education Officer and Mr. P. Ahamparam, B. Sc., succeeds him. | |
| 1972 | M. Manoharadas plays against the Australian School Team. He is also selected for the All Ceylon Combined Schools Soccer Team. M. Sreettharan wins 1st Class and 1st Place and Scholarship at the Peradeniya University in Engineering. | |
| 1971 | Owing to the Over 55's being retired by the Government Mr. Ratnasabapathy leaves and Mr. C. Rajadurai, B. Sc., who was a successful Principal at Runawella M. M. V., succeeds. | |
| 1970 | Six Hartleyites find their places in the Combined Colleges Cricket first Eleven the Captain is a Hartleyite. | |
| 1969 | Four Hartleyites are selected for the Jaffna Combined Colleges Cricket first Eleven. Two are selected for the Second Eleven. M. Nadarajasundaram plays in the University Cricket XI. | |
| 1968 | 21 pupils enter the Engineering Faculty of the University. M. Nadarajasundaram is adjudged the best Cricketer of the North. | |
| 1967 | Four Hartleyites finds place in the Jaffna Combined Colleges Cricket Eleven. S. Kamaleswaren shines in the Hop-Step-and-Jump at the Public Schools Meet. Mr. K. Pooranampillai leaves for St. John's College and Mr. S. Ratnasabapathy M. Sc., of Matale Science College, takes over. | |
| 1963 | Hartley is adjudged the best Cricket Team of the North and wins Cup. | |
| 1962 | G. Balasingham is adjudged the best Cricketer of the North. He wins the Ceylon School best All-round Prize (The President's Cup) and is made the Vice-Captain of the Ceylon Schools Cricket Team that visits Australia. Second and Third Elevens in Cricket started. Hindu Students Union takes shape. K. Dayanithy scores the highest Marks at the University Entrance Examination. | |
| 1957 | Science Association begins. | |
| 1954 | Muruguppillai Navaratnasamy swam the Palk Strait from V.V.T to Point Calimere South India (34 miles) on March 25th (4:00 P.M) - March 26th (7:00 P.M). He was introduced to the Queen of England when she visited Ceylon. | |
| 1953 | Centenary celebration is held. | |
| 1952 | A. Thurairajah wins the only Science Scholarship award by the University. Inspection report says "Good School." Work is well done and efficiently supervised. | |
| 1950 | S. Satkunanathan wins the Dr. Rajah Hewavitarne Memorial Prize for coming First in the S. S. C. Examination in the whole Island. He beats the second by over 100 marks. | |
| 1948 | Drama Society starts and English and Tamil Plays put up. Photographic and Films Club begins. | |
| 1947 | Historical Association comes up. | |
| 1945 | Co-operative Movement begins. | |
| 1944 | Pupils appear of the H. S. C. Examination. Prefects System is introduced. | |
| 1943 | Mr. K. Pooranampillai, B. A. becomes Principal. | |
| 1938 | The Colombo Branch of the College O. B. A. is inaugurated. | |
| 1936 | Mr. C. J. Eliezer wins Scholarship to University College. | |
| 1933 | Hartley College O. B. A. is inaugurated. | |
| 1930 | The Hostel building is put up. Cricket is started. | |
| 1923 | The Boy scout movement is started. Hartley becomes Inter-school Soccer Champions of the north. | |
| 1920 | A Play Ground is provided and more class-rooms are put up. Particularly good results are obtained at the Cambridge Senior Examination. Hartleyites win Science Scholarships to the University College. | |
| 1919 | Pupils appear for the Cambridge Senior Exam. | |
| 1917 | Chemistry Lab is completed and six other class-rooms are put up. | |
| 1916 | Rev. Marshll Hartley, Secretary of the Methodist Mission for the East visits the school and lays the foundation for a science laboratory. The School is re-named HARTLEY COLLEGE | |
| 1915 | Mr. Abraham goes closer home to Driebergs College, Chavakachcheri, and Mr. C. P. Thamotheram becomes principal. | |
| 1912 | Mr. E. S. Abraham B. A., becomes the Principal. The school is called "Christ Church School." | |
| 1906 | Mr. S. A. Paulpillai, B. A., is appointed Principal, while Mr. Sherrard is Head Master. Mr. Paulpillai passes away and Mr. Kanapathippillai becomes Principal. | |
| 1896 | The School is up-graded and allowed to prepare pupils for the Calcutta University Entrance Examination, through Jaffna (Methodist) Central College which is affiliated to the Calcutta University. | |
| 1878 | Mr. J. C. T. Sherrard becomes head master under Rev. Napp. Seventh Grade is the highest class and there are only a big hall and two class-rooms. He becomes so popular that the College is known as "Sherrard's School." | |
| 1874 | The School is shifted to the present site. In the old site a Girls Boarding School is started by Rev. W. R. Winston - presently known as Methodist Girls' High School. | |
| 1874 | Mr. W. M. de Alwis, Sub-Inspector of Schools, reports that "Grades 4 to 6 were up to the mark of the best English Schools in the Peninsula." | |
| 1861 | Mr. D. P. Niles, B. A., re-starts it, and puts it on a strong footing, becomes Principal. | |
| 1860 | School remains closed for part of the year owing to difficulties. | |
| 1848 | The Central Schools Commission recommends grant to the School for its good work. | |
| 1843 | "The School is in flourishing condition" - reports Percival . | |
| 1838 | Rev. Dr. Peter Percival, Scholar and Educationist, who complied the English Tamil Dictionary and translated the Bible into Tamil found the School with the name "Wesleyan Mission Central School." | |
