At the end of World War II Soviet troops occupied southern Sakhalin Island and the Kuril Islands, making them part of the RSFSR. The status of the southernmost Kurils remains in dispute with Japan.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What administrative division did Sakhalin Island not become a part of?
Ah, so.. unanswerable

During the Risorgimento, proponents of Italian republicanism and Italian nationalism, such as Alessandro Manzoni, stressed the importance of establishing a uniform national language in order to better create an Italian national identity. With the unification of Italy in the 1860s, standard Italian became the official national language of the new Italian state, while the various unofficial regional languages of Italy gradually became regarded as subordinate "dialects" to Italian, increasingly associated negatively with lack of education or provincialism. However, at the time of the Italian Unification, standard Italian still existed mainly as a literary language, and only 2.5% of Italy's population could speak standard Italian.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In what decade was Italy unified?
Ah, so.. 1860s

Spanish was the language spoken by the first permanent European settlers in North America. Spanish arrived in the territory of the modern United States with Ponce de León in 1513. In 1565, the Spaniards, by way of Juan Ponce de León, founded St. Augustine, Florida, and as of the early 1800s, it became the oldest continuously occupied European settlement in the continental United States. The oldest city in all of the U.S. territory, as of 1898, is San Juan, capital of Puerto Rico, where Juan Ponce De León was its first governor
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Where is the oldest settlement in America?
Ah, so..
St. Augustine, Florida