Old Javanese in the context of "Kakawin Ramayana"

Nusantara is the Indonesian name of Maritime Southeast Asia (or parts of it). It is an Old Javanese term that literally means "outer islands". In Indonesia, it is generally taken to mean the Indonesian Archipelago. Outside of Indonesia, the term has been adopted to refer to the Malay Archipelago.

The word Nusantara is taken from an oath by Gajah Mada in 1336, as written in the Old Javanese Pararaton. Gajah Mada was a powerful military leader and prime minister of Majapahit credited with bringing the empire to its peak of glory. Gajah Mada delivered an oath called Sumpah Palapa, in which he vowed not to eat any food containing spices until he had conquered all of Nusantara under the glory of Majapahit.The concept of Nusantara as a unified region was not invented by Gajah Mada in 1336. The term Nusantara was first used by Kertanegara of Singhasari in Mula Malurung inscription dated 1255. Furthermore, in 1275, the term Cakravala Mandala Dvipantara was used by him to describe the aspiration of united Southeast Asian archipelago under Singhasari and marked the beginning of his efforts to achieve it. Dvipantara is a Sanskrit word for the "islands in between", making it a synonym to Nusantara as both dvipa and nusa mean "island". Kertanegara envisioned the union of Southeast Asian maritime kingdoms and polities under Singhasari as a bulwark against the rise of the expansionist Mongol-led Yuan dynasty of China.

The Balinese script, (Balinese: ᬅᬓ᭄ᬱᬭᬩᬮᬶ, Aksara Bali, pronounced [aksarə ˈbali]) also known as hanacaraka (Balinese: ᬳᬦᬘᬭᬓ), is an abugida used in the island of Bali, Indonesia, commonly for writing the Austronesian Balinese language, Old Javanese, Malay and the liturgical language Sanskrit. With some modifications, the script is also used to write the Sasak language, used in the neighboring island of Lombok. In the present day it is also sometimes used to write the national language Indonesian.

The script is a descendant of the Brahmi script, and so has many similarities with the modern scripts of South and Southeast Asia. The Balinese script, along with the Javanese script, is considered the most elaborate and ornate among Brahmic scripts of Southeast Asia.

The Solo River (known in Indonesian as the Bengawan Solo, with Bengawan being an Old Javanese word for river, and Solo derived from the old name for Surakarta) is the longest river in the Indonesian island of Java. It is approximately 600 km (370 mi) in length.

Apart from its importance as a watercourse to the inhabitants and farmlands of the eastern and northern parts of the island, it is a renowned region in paleoanthropology circles. Many discoveries of early hominid remains (dating from 100,00 to 1.5 million years ago) have been made at several sites in its valleys, especially at Sangiran, including that of the first early human fossil found outside of Europe, the so-called "Java Man" skull, discovered in 1891.

Gajah Mada (c. 1290 – c. 1364), also known as Jirnnodhara, was a powerful military leader and mahapatih of the Javanese empire of Majapahit during the 14th century. He is credited in Old Javanese manuscripts, poems, and inscriptions with bringing the empire to its peak of glory.

He delivered an oath called Sumpah Palapa, in which he vowed not to rest until he had conquered all of the Southeast Asian archipelago of Nusantara for Majapahit. During his reign, the Hindu epics, including the Rāmāyana and the Mahābhārata, became ingrained in the Javanese culture and worldview through the performing arts of wayang kulit (“leather puppets”). He is considered an important national hero in modern Indonesia, as well as a symbol of patriotism and national unity. Historical accounts of his life, political career, and administration are taken from several sources, mainly the Pararaton ("The Book of Kings"), the Nagarakretagama (a Javanese-language eulogy), and an inscription dating from the mid-14th century.

Samudra Raksa (Old Javanese: Defender of the seas) is a replica ship built in 2003 based on the relief of ships in the Borobudur temple. In the late 20th century, Philip Beale, a British sailor, became interested in depictions of the ship at Borobudur and decided to reconstruct one. Aided by government and international bodies, he organized an expedition team that constructed the ship and, from 2003 to 2004, sailed it from Indonesia to Madagascar and to Ghana, proving that long-distance trade could have occurred. The Samudra Raksa Museum was constructed at Borobudur Archeological Park to house the ship, opening in 2005, and provides other displays to interpret the ancient maritime history of Indonesians.

The Nagarakretagama or Nagarakṛtāgama (Sanskrit: नगरकृतगाम, lit. 'the advanced city'), also known in Bali as Desawarnana or Deśavarṇana (Sanskrit: देशवर्णन, lit. 'country's description'), is an Old Javanese eulogy to Hayam Wuruk, a Javanese king of the Majapahit Empire. It was written on lontar as a kakawin by Mpu Prapanca in 1365 (1287 Saka year). The Nagarakretagama contains detailed descriptions of the Majapahit Empire during its greatest extent. The poem affirms the importance of Hindu–Buddhism in the Majapahit empire by describing temples and palaces and several ceremonial observances.

The Laguna Copperplate Inscription is an official acquittance (debt relief) certificate inscribed onto a copper plate in the Shaka year 822 (Gregorian A.D. 900). It is the earliest-known, extant, calendar-dated document found within the Philippines.

The plate was found in 1987 by a laborer near the mouth of the Lumbang River in Wawa, Lumban, Laguna, in the Philippines. The inscription was mainly written in Old Malay using the Old Javanese script called Kawi script, with several technical Sanskrit words and either Old Javanese or Old Tagalog honorifics. After it was found, the text was first translated in 1991 by Antoon Postma, a Dutch anthropologist and Hanunó'o script researcher.