Problem: On 1 January 1967, Yugoslavia was the first communist country to open its borders to all foreign visitors and abolish visa requirements. In the same year Tito became active in promoting a peaceful resolution of the Arab–Israeli conflict. His plan called for Arabs to recognize the state of Israel in exchange for territories Israel gained.
When did Tito start promoting a peaceful resolution to the Arab-Israeli conflict?
The answer is the following: 1967

Problem: In simple terms, the Cold War could be viewed as an expression of the ideological struggle between communism and capitalism. The United States faced a new uncertainty beginning in September 1949, when it lost its monopoly on the atomic bomb. American intelligence agencies discovered that the Soviet Union had exploded its first atomic bomb, with the consequence that the United States potentially could face a future nuclear war that, for the first time, might devastate its cities. Given this new danger, the United States participated in an arms race with the Soviet Union that included development of the hydrogen bomb, as well as intercontinental strategic bombers and intercontinental ballistic missiles (ICBMs) capable of delivering nuclear weapons. A new fear of communism and its sympathizers swept the United States during the 1950s, which devolved into paranoid McCarthyism. With communism spreading in China, Korea, and Eastern Europe, Americans came to feel so threatened that popular and political culture condoned extensive "witch-hunts" to expose communist spies. Part of the American reaction to the Soviet atomic and hydrogen bomb tests included maintaining a large Air Force, under the control of the Strategic Air Command (SAC). SAC employed intercontinental strategic bombers, as well as medium-bombers based close to Soviet airspace (in western Europe and in Turkey) that were capable of delivering nuclear payloads.
The SAC is an abbreviation for what US force?
The answer is the following: Strategic Air Command

Problem: Many architects resisted modernism, finding it devoid of the decorative richness of historical styles. As the first generation of modernists began to die after WWII, a second generation of architects including Paul Rudolph, Marcel Breuer, and Eero Saarinen tried to expand the aesthetics of modernism with Brutalism, buildings with expressive sculptural facades made of unfinished concrete. But an even new younger postwar generation critiqued modernism and Brutalism for being too austere, standardized, monotone, and not taking into account the richness of human experience offered in historical buildings across time and in different places and cultures.
Who disagreed with the aesthetic of Brutalism?
The answer is the following: postwar generation

Problem: On the other hand, the opinion of Jagić from 1864 is argued not to have firm grounds. When Jagić says "Croatian", he refers to a few cases referring to the Dubrovnik vernacular as ilirski (Illyrian). This was a common name for all Slavic vernaculars in Dalmatian cities among the Roman inhabitants. In the meantime, other written monuments are found that mention srpski, lingua serviana (= Serbian), and some that mention Croatian. By far the most competent Serbian scientist on the Dubrovnik language issue, Milan Rešetar, who was born in Dubrovnik himself, wrote behalf of language characteristics: "The one who thinks that Croatian and Serbian are two separate languages must confess that Dubrovnik always (linguistically) used to be Serbian."
Who is considered the most competent Serbian scientist on language?
The answer is the following:
Milan Rešetar