Republic of Indonesia: Map & History
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian and Pacific oceans.
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Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian and Pacific oceans. Comprising between 13,000 and 17,000 islands—including Sumatra, Java, Sulawesi, and parts of Borneo and New Guinea—it is the world's largest archipelagic state and the 14th-largest country by area. Indonesia has extensive tropical forests and marine ecosystems that support some of the world's highest levels of biodiversity.
Modern Countries Once Part of Republic of Indonesia
At its mapped extent, Republic of Indonesia covered territory in 2 present-day countries. The period shown is when the mapped borders include that country, and the note says how much of it.
States and Provinces
Largest Present-Day Cities in Its Territory
Each opens on the live map inside Republic of Indonesia's borders of that time.
Derived by testing mapped cities against this polity's dated territorial polygons, so the list is indicative and follows the borders in the source dataset.
Republic of Indonesia in Depth
History
The island of Java has yielded numerous hominin fossils generally attributed to Homo erectus, including the type specimen discovered by Eugène Dubois at Trinil. Stone artefacts on Flores show that hominins had reached the island by at least 1.02 million years ago. Homo sapiens had dispersed into Southeast Asia by at least 50,000 years ago. In Sulawesi, narrative cave art has been dated to a minimum age of 51,200 years. Flores also yielded remains of the small-bodied hominin Homo floresiensis. Megalithic traditions later developed at different times across the archipelago, and stone monuments were used for burial and to honour or commemorate ancestors.
Government and politics
Indonesia is a unitary republic with a presidential system under the 1945 Constitution. The constitution's five principles of Pancasila are taught through civic education. After the fall of the New Order in 1998, four constitutional amendments between 1999 and 2002 altered the political system by introducing direct presidential elections, establishing new state institutions, reducing role of the People's Consultative Assembly (MPR), and giving regional autonomy a constitutional basis. Indonesia remained a unitary state, while decentralisation transferred substantial powers to the provinces, districts, and cities.
The president is head of state, head of government, and commander-in-chief of the Indonesian National Armed Forces, and may serve no more than two five-year terms.
Economy
Indonesia has a mixed economy in which the private sector and the government both have large roles. It is the only G20 member state in Southeast Asia. In 2025, gross domestic product was Rp23.821 quadrillion (US$1.45 trillion) at current prices, making it Southeast Asia's largest economy and placing it among the world's top 20 by nominal GDP and top 10 by GDP at purchasing power parity. Services and industry account for the largest shares of gross domestic product, while agriculture remains a major source of employment.
The economy was once largely agricultural, and early post-independence policy centred on agricultural self-sufficiency.
Culture
Indonesia's cultures differ across islands, languages, and communities. Older populations and later Austronesian migrations contributed to this diversity, with Papuan and Melanesian populations prominent in the east. Movement by sea placed the archipelago within trading and migration networks involving Indian, Arab, Persian, Chinese, and mainland Southeast Asian peoples, followed later by Europeans. Religious and courtly influences entered through these routes, and European expansion ultimately brought colonial domination. Coastal commercial centres often encountered outside influences before they reached inland communities.
Indonesia has no single uniform cultural tradition.
Sections adapted from Wikipedia: Indonesia (CC BY-SA 4.0).
Republic of Indonesia: Key Facts
| Capital | Jakarta |
|---|---|
| Official language | Indonesian |
| Religions | Islam, Protestantism, Catholicism, Hinduism |
| Form of government | republic, presidential system |
| Currency | rupiah |
| Founded | 17 August 1945 |
Preceded by
- Dutch East Indies
- United States of Indonesia
- Bone Sultanate
- Tasik
Facts from Wikidata Q252 (CC0).
Republic of Indonesia Timeline
Key historical inflections from foundation to peak territorial expansion
Expansion to peak recorded area of 2,041,331 km² in 1990 CE.
Republic of Indonesia: Frequently Asked Questions
When did the Republic of Indonesia exist?
The Republic of Indonesia is dated to 1946 CE – 2024 CE, in the Industrial era.
What was the capital of the Republic of Indonesia?
The capital of the Republic of Indonesia was Jakarta.
How large was the Republic of Indonesia at its peak?
At its peak in 1990 the Republic of Indonesia covered about 2,041,331 km².
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