Short answers, pulled from the story.
The First Vienna Award treaty was signed on the 2nd of November 1938 at Belvedere Palace in Vienna. This document emerged directly from the Munich Agreement of October 1938 which had already partitioned Czechoslovakia.
Foreign ministers Joachim von Ribbentrop of Germany and Galeazzo Ciano of Italy served as arbiters during the proceedings. Hermann Göring also attended the proceedings while the Hungarian delegation was led by Foreign Minister Kálmán Kánya accompanied by Education Minister Pál Teleki.
Slovakia lost 10,390 square kilometers with 854,277 inhabitants according to the 1930 census when the award was announced around 7 p.m. The ceded territories included towns like Senec Galanta Vráble Levice Lučenec Rimavská Sobota Jelšava Rožnava Košice Michaľany Veľké Kapušany Uzhhorod and Mukachevo.
The Vienna Award escalated Slovakia into first deportations of Jews occurring between the 4th and the 5th of November 1938. Tiso's autonomous government deported 7,500 Jews into the new Hungarian-Slovak border justifying it as letting them go where they wanted.
British Foreign Office confirmed Britain bound Munich Agreement regarding Czechoslovak borders interpreted signed properly invalid on the 15th of March 1939. Italian Foreign Minister Carlo Sforza informed Czechoslovak representative the 26th of September 1944 considered Munich First Vienna Award invalid start confirmed peace treaty Hungary signed the 10th of February 1947 declaring border fixed former frontier existed the 1st of January 1938 except three villages south Bratislava given bridgehead Czechoslovakia.