Association of Political Organisations of the Indonesian People (Youth Oath) of 1928, in which nationalist symbols of Indonesia were adopted, namely, Bahasa Indonesia - a variant of Bahasa Melayu, was named the lingua franca; the presentation of "Indonesia Raya", the national anthem, and the red-white national flag, or "Sang Saka Merah Putih", symbolising the Indonesian independence movement. Association of Political Organisations of the Indonesian People Association of Political Organisations of the Indonesian People (Indonesian: Pemufakatan Perhimpunan-perhimpunan Politik Kebangsaan Indonesia, (abbrev: PPPKI), was one of the key anti-colonial political umbrella organizations championing for independence in Indonesia (present-day of Netherlands East Indies) during Dutch colonial rule. PPPKI attempt at uniting
Saka Tunggal Mosque Tulih (also spelled Ki Ageng Tolih), a pioneer of the Aboge school of Islam which combined the Islamic and Javanese calendars. The site remains sacred to followers of Aboge Islam, Saka Tunggal Mosque is often used for Eid prayers by the Aboge in Banyumas. In 2004 the mosque was designated a Cultural Property of Indonesia. It is open to tourists, but under-utilized and poorly managed. Little infrastructure has been developed to support the development of the mosque and its surrounding area as a tourist object. As such, in 2014 only 2,000 visitors were recorded. Saka Tunggal mosque is located in