They (Krsna and Balarama) learned how to make and solve riddles. They learned the art of how even a dull student can very quickly learn the alphabet and read books. Then They learned how to rehearse and act out a drama: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.