▁life , ▁in ▁a ▁one - party ▁system . ▁The ▁body ▁thus ▁came ▁to ▁be ▁called ▁" the ▁Non - ree lect ed ▁Congress ". ▁ ▁Over ▁the ▁years , ▁dece ased ▁members ▁elected ▁on ▁the ▁main land ▁were ▁not ▁replaced ▁while ▁additional ▁seats ▁were ▁created ▁for ▁Taiwan ▁starting ▁with ▁eleven ▁seats ▁in ▁ 1 9 6 9 . ▁ ▁Fif ty - one ▁new ▁members ▁were ▁elected ▁to ▁a ▁three - year ▁term ▁in ▁ 1 9 7 2 , ▁fifty - two ▁in ▁ 1 9 7 5 , ▁nin ety - se ven ▁in ▁ 1 9 8 0 , ▁nin ety - e ight ▁in ▁ 1 9 8 3 , ▁one ▁hundred ▁in ▁ 1 9 8 6 , ▁and ▁one ▁hundred ▁thirty ▁in ▁ 1 9 8 9 . ▁Although ▁the ▁elected ▁members ▁of ▁the ▁Legisl ative ▁Y uan ▁did ▁not ▁have ▁the ▁majority ▁to ▁defeat ▁legisl ation , ▁they ▁were ▁able ▁to ▁use ▁the ▁Legisl ative ▁Y uan ▁as ▁a ▁platform ▁to ▁express ▁political ▁diss ent . ▁O pp osition ▁parties ▁were ▁formally ▁illegal ▁until ▁ 1 9 9 1 , ▁but ▁in ▁the ▁ 1 9 7 0 s ▁candidates ▁to ▁the ▁Legisl ative ▁Y uan ▁would ▁run ▁as ▁Tang w ai ▁(" out side ▁the ▁party "), ▁and ▁in ▁ 1 9 8 5 ▁candidates ▁began ▁to ▁run ▁under ▁the ▁b anner ▁of ▁the ▁Democratic ▁Progress ive ▁Party . ▁ ▁The ▁original ▁members ▁of ▁the ▁Legisl ative ▁Y uan ▁remained ▁until ▁ 3 1