A full and detailed summary of the pre-independence history of Indonesia presented as a province by province timeline. The Spice Route End Independent Travel & Culture Guides to Indonesia On 6 and 9 August, atomic bombs were dropped on Hiroshima and Nagasaki. On 7 August, the Japanese announced the formation of a Preparatory Committee for Indonesian Independence(PPKI) to accelerate preparations for establishing an Indonesian government for the whole of the East Indies, not just Java. The Roman historian Pliny the Elder 's Natural History suggests that, in the 1st century ce, Indonesian outriggers were engaged in trade with the east coast of Africa. Indonesian settlements may have existed at that time in Madagascar, an island with distinct Indonesian cultural traits. …Asian and African states—organized by Indonesia, Myanmar (Burma), Ceylon (Sri Lanka), India, and Pakistan—which took place April 18-24, 1955, in Bandung, Indonesia. In all, 29 countries representing more than half the world's population sent delegates. Read More Indonesia is composed of some 17,500 islands, of which more than 7,000 are uninhabited. Almost three-fourths of Indonesia's area is embraced by Sumatra, Kalimantan, and western New Guinea; Celebes, Java, and the Moluccas account for most of the country's remaining area. This is a timeline of Indonesian history, comprising important legal and territorial changes and political events in Indonesia and its predecessor states. To read about the background to these events, see History of Indonesia. See also the list of presidents of Indonesia . Millennia: 1st BCE · 1st-2nd · 3rd. 1948-12-18 Indonesia begins its 2nd political election; 1948-12-20 Second Chamber accept 2nd Police Action in Indonesia; 1949-01-28 UN Security council convicts Dutch aggression in Indonesia; 1949-03-01 Indonesia seizes Yogyakarta from the Dutch; 1949-08-03 Republic Indonesia proclaims cease fire 1825 The Javanese War begins. The Dutch take Pelambang in Sumatra. 1830 The Dutch win the Javanese War 1894 The Dutch capture Lombok 1905 The Dutch capture Sulawesi 1906 The Dutch conquer Bali 1942 The Japanese invade Indonesia 1945 August Sukarno declares Indonesian independence but the Dutch fight to subdue Indonesia atUs.