capital city and an economic center, Palu attracts migrants looking for economic opportunities from all around Indonesia. Most of the city's population are Muslims; the region was converted to Islam in the 17th century. The population of Christians are mostly migrants from other parts of Indonesia but there is also a local Christian population due to missionary activities in the region that started in 1888. Other minorities exist are Buddhists and Hindus from other parts of Indonesia. , Palu has 504 mosques, 108 Protestant churches, 2 Catholic churches, 4 Balinese temple, and 4 Vihāra. The relationship between the Kaili and Minahasan populations was tense during its early days partly due to religious differences between the mostly-Muslim Kaili and the mostly-Christian Minahasan; and because the Minahasan, who were usually government workers during the colonial era and the early days of Indonesian republic, were generally considered financially more capable. There was also brief tension between Bugis and Kaili people due to perceived economic differences, resulting in riots at traditional market in 1992 and 2004. Education , Palu has 171 kindergartens, 190 elementary schools, 73 junior high schools, and 39 senior high schools. There were also 26 vocational high schools in the city in the same year. According to Statistics Indonesia, there are 13 universities and higher-education institutions in the city . The city's most prominent university is Tadulako University, which is the main public university of Central Sulawesi. It has B accreditation and more than 40,000 students registered according to Ministry of Education, Culture, Research, and Technology. Datokarama Islamic State University was previously named State Islamic Institute of Datokarama Palu before being upgraded into university status on 8 July 2021. Public colleges in the city include Kemenkes Health Polytechnic owned by Ministry of Health. The city also hosts private universities and colleges such as Alkhairaat University, Muhammadiyah Palu University, Palu Theological College, and Palu Polytechnic. The city also hosts a public library that is managed by the provincial government. Palu's literacy rate is relatively high at 99.60% for people between 15 and 19 years old, and 99.84% on average in the wider city population. Healthcare , Palu has 13 hospitals—including three maternity hospitals—as well as 17 polyclinics, 39 puskesmas, and 35 registered pharmacies. One of the main public hospitals in the city is Undata Regional Hospital, which is managed by the government of Central Sulawesi province and is classified as B-class under