Mehregan, the festival of Mithra in the autumn, was historically second only to Nowruz and involved a laid table of autumn fruits, nuts and rosewater, with the wearing of purple and public celebration; it declined after the Islamic conquest but has been substantially revived among Iranians both inside and outside Iran. Sadeh falls fifty days before Nowruz, in the coldest part of winter, and is marked by an enormous bonfire lit at dusk on high ground, celebrating the discovery of fire and the coming defeat of cold and darkness. The Sadeh at Kerman, run by the local Zoroastrian association, draws thousands each year and the great majority of those attending are Muslim Iranians, which makes it one of the clearest places to see how Zoroastrian practice and Iranian national identity overlap. Both festivals are also kept in the diaspora, where they function partly as cultural gatherings for Iranians of all religions.