What is "sekaten"

Sekaten (originated from Arabic word: Syahadatain) is a week-long Javanese traditional ceremony, festival, fair and pasar malam ( night market) commemorating Mawlid (the birthday of prophet Muhammad), celebrated annually started on 5th day through the 12th day of (Javanese Calendar) Mulud month (corresponding to Rabi' al-awwal in Islamic Calendar). The festivities usually took place in northern alun-alun (square) in Yogyakarta, and simultaneously also celebrated in northern alun-alun of Surakarta. This ceremony originally were initiated by Sultan Hamengkubuwana I, the founder of Yogyakarta Sultanate to promote the Islamic faith.