▁C idade ▁Univers it ária . ▁ 3 ▁April ▁ 1 9 9 3 : ▁Open ing ▁of ▁the ▁Cam po ▁Grande ▁station . ▁Main ▁branch ▁route : ▁R estaur adores ▁- ▁Cam po ▁Grande . ▁Current ▁Y ellow ▁Line ▁branch ▁route : ▁Rot unda ▁- ▁Cam po ▁Grande . ▁ 1 5 ▁July ▁ 1 9 9 5 : ▁Cre ation ▁of ▁the ▁Blue ▁and ▁Y ellow ▁lines ▁by ▁building ▁a ▁second ▁Rot unda ▁station . ▁New ▁Blue ▁line ▁route : ▁Col ég io ▁Mil itar / L uz ▁- ▁Cam po ▁Grande . ▁ 1 8 ▁October ▁ 1 9 9 7 : ▁Open ing ▁of ▁the ▁Car n ide ▁and ▁Pont inha ▁stations . ▁Line ▁route : ▁Pont inha ▁- ▁Cam po ▁Grande . ▁ 1 ▁March ▁ 1 9 9 8 : ▁Pal hav ã ▁station ▁is ▁renamed ▁to ▁Mar qu ês ▁de ▁P omb al , ▁S ete ▁R ios ▁station ▁is ▁renamed ▁to ▁J ard im ▁Z ool óg ico ▁and ▁Soc or ro ▁station ▁is ▁renamed ▁to ▁Mart im ▁Mon iz . ▁ 3 ▁March ▁ 1 9 9 8 : ▁Cre ation ▁of ▁the ▁Blue ▁and ▁Green ▁line ▁by ▁closing ▁the ▁R estaur adores ▁- ▁Ross io ▁tunnel . ▁New ▁Blue ▁line ▁route : ▁Pont inha ▁- ▁R estaur adores . ▁ 8 ▁August ▁ 1 9 9 8 : ▁Open ing ▁of ▁the ▁Ba ixa - Ch i ado ▁station . ▁Line ▁route : ▁Pont inha ▁- ▁ ▁Ba ixa - Ch i ado