Cold War tensions and the polio vaccine was the first polio vaccine to receive approval of the U.S. government, and was used until 1961 in America, when the Sabin vaccine was recommended to replace it. Albert Sabin, a virologist who publicly disagreed with Salk and his killed vaccine, worked on creating a vaccine with live, attenuated vaccines. Despite Cold War tensions, in January, 1956 Mikhail Chumakov, the director of Moscow's Polio Research Institute, his wife and colleague Marina Voroshilova, and Anatoli Smorodentsev, traveled to the U.S. in order to study the Salk vaccine and visited the laboratory of Albert Sabin. With the clearance of the FBI, Sabin
First of His Name reads: "Only slow by "Game of Thrones" standards, "First of His Name" demonstrates how carefully constructed this show has been since season one." Matt Fowler of "IGN" gave the episode a 9/10 writing that the episode "gave us a much-needed look back at some past events on the series." He highlighted the revelation that Littlefinger's actions "put the story of the entire series into motion." Erik Adams of "The A.V. Club" gave the episode an A and praised the writers for their focus on the female characters. First of His Name "First of His Name" is the fifth episode of