| 1948-1950 |
President of Mokpo Daily Report |
| 1951 |
President of Heungkuk Transportation |
| 1951.09 |
Director of Korea Shipping Association |
| 1957.10 |
Central Standing Committee of Democratic Party |
| 1960.10 |
Planning Committee member and Spokesperson of Democratic Party |
| 1961 |
5th member of the House of Representatives(Democratic Party, Injae) |
| 1963 |
6th member of the National Assembly(Democratic Party, Mokpo, Jeollanam) |
| 1965 |
Spokesperson of Peoples Democratic Party(Democratic-Democratic Justice Unification Party) |
| 1966 |
Chairman and Political Committeeman of Policy Planning Committee of Peoples Democratic Party |
| 1967.02 |
- Spokesperson and Political Committeeman of Peoples
- Democratic Party(Democratic-Democratic Justice UnificationParty) |
| 1967.06 |
7th member of the National Assembly(New Peoples Party, Mokpo, Jeollanam) |
| 1970 |
Presidential candidate of New Democracy Party |
| 1971.4 |
7th Candidacy of Presidential Election |
| 1971-1972 |
8th member of the National Assembly(New Peoples Party, nationwide) |
| 1974.11 |
Participated in Nationality Recovery Assembly |
| 1976-1978 |
- Imprisoned to the 3.1 democracy national salvation declaration event |
| 1979.3 |
Formation of National Association for democracy and unification |
| 1983 |
Establishment of Korea Research Institute in the U.S. |
| 1983.5 |
Adviser of Salvation Committee of Union Theological College |
| 1983 |
Adviser of Torture Victim Salvation Committee |
| 1983 |
Guest researcher of Harvard International Issue Research Institute in the U.S. |
| 1985 |
Co-chairman of the Council for the Promotion of Democratization |
| 1985 |
Been had as a Permanent Adviser of New Democracy Party. but impeded by the authorities. |
| 1987.04 |
Permanent Adviser of Democratic Reunification Party |
| 1987.10 |
Chairman of preparation for formation of Party for Peace and Democracy |
| 1987-1991 |
President of Party for Peace and Democracy |
| 1987 |
Elected as a presidential candidate of Party for Peace and Democracy |
| 1987 |
Candidate for 13th Presidential Election |
| 1988-1992 |
13th member of the National Assembly(Party for Peace and Democracy, nationwide) |
| 1991 |
Formation of New Democracy Party through unification with New Democratic Coalition, elected as a President |
| 1991-1992 |
Formation of the United Democratic Party through unification with Democratic Party, elected as a supreme member |
| 1992 |
14th member of the National Assembly(Democratic Party, nationwide) |
| 1992.6-12 |
Executive member of Democratic Party |
| 1992 |
14th Candidacy of Presidential Election |
| 1993.12 |
Member of conference of the elder statesmen of Korea Constitutional Assembly |
| 1993 |
Guest professor of Cambridge University |
| 1994 |
Chief director of Asia·Pacific Ocean peace foundation The name changed from Asia·Pacific Ocean peace foundation to Asia-Pacific Peace Association |
| 1995-1998.02 |
Executive director of Asia-Pacific Ocean Peace Foundation |
| 1995-2001.11 |
President of National Congress, Democratic Party |
| 1995-1997 |
Associate Chairman of Forum of Democratic Leaders in the Asia-Pacific |
| 1997.1218 |
Elected as the 15th South Korean president |
| 1998.2.25 |
Inaugurated as the 15th President of South Korea |
