Old Javanese is the oldest phase of the Javanese language that was spoken in areas in what is now the eastern part of Central Java and the whole of East Java.
While evidence of writing in Java dates to the Sanskrit "Tarumanegara inscription" of 450, the oldest example written entirely in Javanese, called the "Sukabumi inscription", is dated March 25, 804. This inscription, located in the district of Pare in the Kediri regency of East Java, is actually a copy of the original, dated some 120 years earlier; only this copy has been preserved. Its contents concern the construction of a dam for an irrigation canal near the river Śrī Hariñjing (nowadays Srinjing). This inscription is the last of its kind to be written using Pallava script; all consequent examples are written using Javanese script.