1967 - Established in Knowles Building as one of the departments under the Faculty of Social Sciences
1969 - Professor S H Saw was appointed as the founding chair
1969 - Developed the Statistics curriculum
1985 - Moved offices from Knowles Building to Run Run Shaw Building
1987 - Launched the Master of Statistics programme (then Master of Social Sciences in Applied Statistics programme)
1994 - Launched the Bachelor of Science in Actuarial Science programme
1995 - Moved offices from Run Run Shaw Building to Meng Wah Complex
1998 - Renamed the Department of Statistics and Actuarial Science
1998 - HKU designated the area of financial time series as an area of distinction within the University
2004 - Transferred to the Faculty of Science
2004 - Launched the Major of Risk Management
2004 - Established the Patrick Poon Lecture Series in Actuarial Science
2009 - Established the Saw Swee Hock Public Lecture in Statistics
2011 - Established the Patrick S C Poon Professorship in Statistics and Actuarial Science
2011 - Designated as a Center of Actuarial Excellence by the US Society of Actuaries
2014 - Moved offices from Meng Wah Complex to Run Run Shaw Building
2015 - Launched the Major in Decision Analytics
2016 - HKU Statistics ranked No.1 in Hong Kong and No.23 worldwide according to the QS World University Rankings by Subject