evidence: The Piran Old Town stands on a peninsula called Punta Madonna, and from there opens the Gulf of Piran, which stretches from the port to the spa town of Portorož, which is part of the municipality of Piran and is renowned for being one of the most exclusive destinations in Slovenia, with a good choice of luxury hotels and casinos. [...] Until the mid-20th century Piran was mainly inhabited by Italian-speaking people, and after WWI it was annexed to the Kingdom of Italy. After the tragic events of WWII Piran fell under the military occupation of the troops of Tito and the Allies and was assigned to Zone B of the Free Territory of Trieste, under Yugoslavian administration. Thus it definitively merged, following the Osimo Treaty in 1975, into socialist Yugoslavia. Most of the population, which was ethnically and culturally Italian, was forced to leave and was replaced by Slovenians. However, the municipality of Piran is still officially bilingual, and both Slovenian and Italian are spoken here. After the dissolution of Yugoslavia, Piran merged into the territory of the newly formed Republic of Slovenia.