Sanskrit is a historical Indo-Aryan language, the primary liturgical language of Hinduism and a literary and scholarly language in Jainism and Buddhism. Today, it is listed as one of the 22 scheduled languages of India and is an official language of the state of Uttarakhand. Sanskrit holds a prominent position in Indo-European studies. Classical Sanskrit is the standard register as laid out in the grammar of Panini, around the 4th century BCE. Its position in the cultures of Greater India is akin to that of Latin and Greek in Europe and it has significantly influenced most modern languages of the Indian subcontinent, particularly in India, Pakistan, Sri Lanka and Nepal.