Rubuta ci gaba ga wannan sakin layi - A lokacin juyin juya halin 1848
ya kasance yana tattara kayan don littattafai game da tarihin Slavic mafi tsufa. A cikin 1848 an sanya shi shugaban ɗakin karatu na Jami'ar Prague kuma babban farfesa na ilimin Slavonic a Jami'ar Prague, amma ya yi murabus zuwa na ƙarshe a 1849 kuma ya kasance shugaban ɗakin karatu na jami'ar kawai. Dalilin wannan murabus shi ne cewa a lokacin juyin juya halin 1848 <unk> 49 ya halarci taron Slavic a Prague a watan Yunin 1848 kuma saboda haka ya zama abin zargi ga hukumomin Austrian. A lokacin mulkin mallaka bayan shan kashi na juyin juya halin, ya yi rayuwa mai zaman kansa kuma ya yi nazarin musamman tsoffin adabin Czech da tsoffin littattafan Slavonic Church da al'adu.