| 
                     | 
    ⇢ | 
                                 
                0%
             
             | 
    Speciality added | 
| 
                     | 
    ⇢ | 
                                 
                2
             
             | 
    Speciality::teachers() added | 
| 
                     | 
    ⇢ | 
                                 
                2
             
             | 
    Speciality::study_submodules() added |