Settlement on nearby Cres is known to date back around 12,000 years, and the island of Lošinj is also thought to have been inhabited since prehistoric times. This is evidenced by hill-forts at the foot of Osoršćica and around the port of Mali Lošinj. According to
Ptolemy, the
Romans called this island
Apsorrus (, and referred to the islands of Lošinj and
Cres collectively as
Apsirtides. In several places, ruins of Roman villas have been excavated (
villae rusticae: Liski, Sveti Jakov, and Studenčić near
Ćunski). Several small
eremitic churches dating from the Roman era have been preserved (St. Lovreć near Osor, and St. James in Sveti Jakov).In the Middle Ages, Lošinj was the property of the clerical and secular nobility of Osor and unpopulated. The first evidence of settlers from the mainland was in 1280. Pursuant to a contract with
Osor, their settlements gained self-governance in 1389. The name Lošinj was first mentioned in 1384. Parallel with the gradual decline of Osor from the 15th century onwards, the settlements Veli Lošinj and Mali Lošinj played an increasingly important role. In the 18th and 19th centuries, trade, shipbuilding and seafaring on the island developed more intensely. In 1771,
Alberto Fortis visited Cres and Lošinj (which was then called
Osero) and wrote a travelogue about his visit: ''Saggio d'osservazioni sopra l'isola di Cherso ed Osero.'' After the fall of the
Republic of Venice in 1797, Lošinj became part of the
Austrian province (
crown land) of Istria under the
Treaty of Campo Formio. By 1900 the population had reached 11,615. In 1921, it was given as 15,000. Tourism appeared on Lošinj for the first time in 1885 with the appearance of
health tourism. The first
hotel in Lošinj, Vindobona, was built in 1887. In 1919, Lošinj, with its partially Italian population, became part of
Italy under the terms of the
Treaty of Saint-Germain, as confirmed by the 1920
Treaty of Rapallo. It was part of Italy until 1943 when it was occupied by
German Wehrmacht and
Croatian troops during
World War II as part of the
Operational Zone Adriatic Coast. In 1947 the island and the rest of Croatia became part of
Yugoslavia, until
Croatia declared independence from the Yugoslav Federation in 1991. The post-Second World War period saw a substantial exodus (see
Istrian–Dalmatian exodus for further details) of its
Italian-speaking population to Italy and to other countries. According to the last census the number of Italian-speaking citizens in Lošinj were 557 (6.64% of the total official resident population). Before the independence of Croatia from the Yugoslav Federation, the official censuses reported the Italian-speaking minority being much smaller (figures quoted in the official census conducted in 1981 shows that the Italian minority accounted only for 1.5% of the resident population). Expatriates in Italy and around the world publish a newsletter which keeps their memories and traditions alive. On the Island Italian is popular as a second language. Due to its temperate climate, and non-withstanding the occasional episode of high winds, Losinj started becoming a tourist destination of international renown. Powerful Russian oligarchs and consortia have invested in properties on the Island. ==People and art==