Answer

Aadinath Bhagwan, yani Rishabhdev Bhagwan ka Nirvana Ashtapad Parvat par hua tha.

Jain parampara ke anusaar unka nirvana Magh Krishna Chaturdashi ke din hua tha.

Lekin “kis varsh” mein hua tha, iska exact historical year Jain parampara mein modern calendar ke hisaab se clearly established nahin hai.

Explanation

Aadinath Bhagwan Jain Dharma ke pratham Tirthankar hain. Unka kaal bahut prachin maana gaya hai, jo vartaman historical calendar se bahut pare hai. Isliye unke nirvana ka exact year BCE/CE ya Samvat ke roop mein nishchit roop se batana uchit nahin hoga.

Takeaway

Aadinath Bhagwan ka nirvana Ashtapad Parvat par Magh Krishna Chaturdashi ko hua tha; exact modern varsh clearly established nahin hai.