Year 5 ( V ) was a common year starting on Thursday ( link will display the full calendar ) of the Julian calendar .
5 ( V ) is a common year of the Julian calendar which started on a Thursday .
The study of language began in India with Pāṇini , the 5th century BC grammarian who wrote about the 3,959 rules of Sanskrit morphology , which described the different kinds of vowels and consonants Sanskrit had , as well as verb and noun classes .