Education
1965–1970 — studied at the Teachers" Institute of Daugavpils, profession – secondary school teacher of biology and chemistry.
1965–1970 — studied at the Teachers" Institute of Daugavpils, profession – secondary school teacher of biology and chemistry.
1970–1975 — teacher, assistant director, director of the Virbi secondary school (Talsi district). 1975–1983 — worked in the Department of Education of Talsi Executive Committee. 1983–1993 — worked in the Ministry of Education of Latvia.
1997 — Pliners received his Doctor paed. degree from the University of Latvia, and was elected to the Riga City Council from National Harmony Party (NHP).
1998 — elected to the 7th Saeima (Parliament). 2002 — elected to the 8th Saeima.
2003 — Pliners left NHP (which had withdrawn from ForHRUL that year) and returned to the union. He became the leader of the newly founded party "Free Choice in People"s Europe" (BITE), co-chairman of ForHRUL (until 2015) and chairman of its parliamentary group.
One of the leaders of Russian School Defense Staff, writing several publications on the language of instruction issues.
2006 — before the parliamentary elections ForHRUL named Pliners its candidate for Prime Minister. Elected to the 9th Saeima, remained chairman of ForHRUL parliamentary group (until 2010).
Foreign Human Rights in United Latvia, Communist Party of the Soviet Union.
He was member of Social Democratic party group in the Baltic Assembly.
