1931 – Born on the 1st of February in Munshiganj District, Bengal (now in Bangladesh).
1952 – He received Bachelor of Science at the University of Dhaka.
1954 – He received his Masters Degree at the University of Dhaka.
1958 – He obtained his Doctor of Philosophy from the University of Wisconsin-Madison in the United States.
1962 – He held the post of chairman of the Soil Science Department of Dhaka University and Dean of Biological Science of Dhaka University.
1984 – He worked as visiting professor in Cornell University in the United States and German Technical University, Gottingen University in Germany.
1991 – He was an adviser in the caretaker government.
– He became the chairman of the Public Service Commission for two years.
1995 – He became the chairman of the University Grants Commission for four years.
2002 – He became president of Bangladesh.
2006 – He was admitted on the 23rd of May to the Combined Military Hospital (CMH) in Dhaka.
– He was taken to Singapore on the 24th of May and underwent a successful by-pass heart operation at the Mount Elizabeth Hospital.
– He was sworn in as the Chief Advisor of the Caretaker Government on the 29th of October.
2007 – He resigned from his position on the 11th of January as the Chief Advisor of the Caretaker Government.