Culture of Indonesia and the fusion of Hinduism and animism in Kaharingan; others could be cited. Balinese dances have stories about ancient Buddhist and Hindu kingdoms, while Islamic art forms and architecture are present in Sumatra, especially in the Minangkabau and Aceh regions. Traditional art, music and sport are combined in a martial art form called Pencak Silat. The Western world has influenced Indonesia in science, technology and modern entertainment such as television shows, film and music, as well as political system and issues. India has notably influenced Indonesian songs and movies. A popular type of song is the Indian-rhythmical dangdut, which is
Pencak Silat schools often exchange students so cross-training between the styles is common. All Balinese pencak schools traditionally keep sportive contests and performance to a minimum in order to emphasise combat effectiveness. The Bugis ("Ugi") and Makassar people ("Mangkasara") are two related maritime groups from Sulawesi. The Bugis in particular were renowned navigators and shipbuilders, but also feared as corsairs and slave-traders. Both the Bugis and Makassarese were famous for piracy, though this was more common among the former than the latter. As sailors for whom the knife is a vital tool, Bugis and Makassar combatives (known locally as silat) favour blades.