The most significant event that happened on Binara Pura Pasalosvaka Poya day was the establishment of Bhikkuni Order (Admission of Nuns to the Buddhist Order). On the initiative of the Maha Prajapati Gotami, after many requests by her, the Buddha allowed the woman folk to enter the order.
Who is Maha Prajapati Gotami? She was the sister of Queen Mahamaya, mother of Prince Siddharta Gautama. She is the aunt of the Prince. Following Mahamaya’s passing away, seven days after the birth of Prince Siddharta, it was Maha Prajapati Gotami who brought up Prince Siddharta. According to the history of Buddhism, Maha Prajapati Gotami was the first Bhikkuni in Buddha Sasana. She entered the Order with five hundred princesses on a Binara Pura Pasalosvaka Poya Day and thus began the Bhikkuni Order.