A more severe sign of disobedience was so-called Croatian Spring of 1970 and 1971, when students in Zagreb organised demonstrations for greater civil liberties and greater Croatian autonomy, followed by mass protests across Croatia. The regime stifled the public protest and incarcerated the leaders, though many key Croatian representatives in the Party silently supported this cause. As a result, a new Constitution was ratified in 1974, which gave more rights to the individual republics in Yugoslavia and provinces in Serbia.
A mOre SEveRE sign of disobedieNcE Was so-called CrOaTIaN sPRing Of 1970 ANd 1971, wheN StUdentS In zagrEB OrganISed demOnStratIoNS for greaTer civil libeRTieS aNd gREateR croatiaN auToNOmy, fOLLowed by mass prOTesTs aCroSs Croatia. the regiMe sTiflEd the Public pRotest aNd INcArceraTed thE leAdeRs, thouGh many key croatian rEpRESENtATIveS in tHE Party sILenTly suPPOrTEd thiS cauSe. as a resuLt, a nEw constitutioN was rAtiFiEd in 1974, which gAve More RIghtS tO the indIVIdUal rePUblICS In yugoslaviA aNd pRoVINces in serbia.