Jayapura, founded on 7 March 1910 as Hollandia, had developed into a city with modern civil, educational, and medical services in 1962. Since Indonesian administration services have been replaced by Indonesian equivalents such as TNI (the army) replacing into Papua Battalion. The name of the city has been changed to Kotabaru, then to Sukarnopura and finally to its current official name. Among ethnic Papuans, it is also known as Port Numbai, the former name before the arrival of immigrants.
Jayapura is the largest city, boasting a small but active tourism industry; it is built on a slope overlooking the bay. Cenderawasih University (UNCEN) campus stays at Abepura that is the houses of University Museum. Both Tanjung Ria beach, near the market at Hamadi (site of the 22 April 1944 Allied invasion during World War II) and the site of General Doughlas MacArthur's World War II headquarters at Mount Ifar have monuments commemorating the events.