At the beginning of the Neolithic migration of speakers of Austronesian languages of the Islands of Formosa to the islands in Indonesia. When it did happen the spread of the culture of rice farming, technology, maritime, domestication of animals, pottery making, home stage, weaving up stone tools that diupam.
Bracelet stone is a product of stone tool that diupam and many are found in the northern region of Purbalingga includes the Village Ponjen, Limbasari up Palumbungan. The prevalence of findings of stone bracelet and supporting materials / tooling maker, make the region is synonymous with the workshop of the manufacture of stone bracelet. Bracelet stone first functioned as a social identity and also as a fixture of worship. The existence of stone bracelet this has been studied in an excavation large in Purbalingga by Prof. Truman SImanjuntak which began in 1981.
The findings of the rescued fragments of stone bracelets that are made from stone chert with a dark green color.
