Is any Hindu festival ociated with/connected to any event(s) of the Mahabharata?

The Festivals connected with Maha Bharata are 1) Sri Krishna Jayanthi, 2) Deepavali on that day Sri Krishna Killed Narakasura 3) Vijaya Dasami on that day Arjuna fought with Kowravas in connection with Uttara Go Grahanam (Theft of cows of Virat Raj ) 4).Vinayaka Chavithi on that day we will worship Lord Vinayaka and connected story of Lord Krishna and Satragit and samanthaka mani 5). In Madhura the people worship the Govardhana Giri on the day of lifting of Govardhana Giri by Lord krishna 6)Bhsma Ekadasi, on which day Bhsma left this earth,