27 May 1906- Born at Phumriang village, Chaiya, South Thailand, and named Nguem.
1914 - Became a temple boy at Wat Nork, Phumriang, where he lived for three years.
1922 - Father died, and he took over the family business while supporting his brother's -education.
1926 - Brother took over the family business, allowing Buddhadasa to become a bhikkhu, aged twenty-one, at Wat Nork on the 29th July. Given the name Indapanno.
1928 - Went to Bangkok to study Buddhist theology; returned after two months to Chaiya, his home town.
1929 - Wrote his first book, Giving Alms.
1929 - Invited to be the instructor at a school for scriptural studies at Wat Phratat in Chaiya.
1930 - Returned to study in Bangkok.
1932 - Left Bangkok to live and practise at a ruined temple near Phumriang,
later re-named Suan Mokkhabalaram, 'The garden of the power of liberation.'
Took the name Buddhadasa, 'servant of the Buddha'.
1932-34 - Spent two years alone at Suan Mokkh, taking on a demanding and ascetic lifestyle.
1933 - Supported his brother, Dhammadasa, in establishing Buddhasasana, a nationally distributed magazine.
1935 - Dhammadasa and Buddhadasa established The Society of the Gift of Truth.
During the 1940's, began to make national impact through his publications and talks, engaging in discussion with government ministers and giving controversial talks to the Buddhist Society of Thailand.
July 1940 - Gave his first talk at the Buddha-Dhamma Society in Bangkok, giving teachings for lay people.
During the Second World War, met with cabinet ministers and the ex-prime minister for discussions.
Began to give talks publicly criticising current practices in Thai Buddhism. His books, relevant to the newly emerging society began to make a national impact.
1947 - Received the title of upajjhaya, preceptor.
1949 - Appointed chief of the Southern Disseminating Unit.
Appointed abbot of the royal monastery Wat Phraparamadhatu.
Translated teachings of two prominent Zen masters, Wei Lang Huang Po.
1962 - Built a 'spiritual theatre' to present the Dhamma to visitors through multi-media presentations, painting, ceramics and toys.
1967 - Appearance and Reality, a review of Christianity and Buddhism, published; worked actively to lessen religious sectarianism in India, Sri Lanka and the Middle East.
1971-1991 - initiated a Saturday Dhamma Talk programme Suan Mokkh, giving the talks himself until his health began to fail.
1973-1976 - Got nationwide coverage debating on television and radio.
1980 - The Mahachulalongkorn Buddhist University conferred an Hononary Doctorate
of Buddhism on him, the first it had offered in its ninety years of existence.
Became the first monk to be made an honorary member of the widely recognised research body, The Siam Society.
Died on 8th July 1993, aged eighty-seven.