Context: On December 25, 1991, following the collapse of the Soviet Union, the republic was renamed the Russian Federation, which it remains to this day. This name and "Russia" were specified as the official state names in the April 21, 1992 amendment to the existing constitution and were retained as such in the 1993 Constitution of Russia.

Question: When did the Soviet Union break up?
Answer: December 25, 1991

Question: Which name did Russia take after the fall of the Soviet Union?
Answer: the Russian Federation

Question: What is the current official name of Russia?
Answer: the Russian Federation

Question: When was the current name for Russia added to the Russian constitution?
Answer: April 21, 1992

Question: When was Russia renamed the Russian Federation?
Answer: December 25, 1991

Question: What event led to Russia being renamed the Russian Federation?
Answer: the collapse of the Soviet Union

Question: When was Russia made an official state name of the Russian Federation?
Answer: April 21, 1992

Question: What 1993 document confirmed Russia as an official state name of the Russian Federation?
Answer: 1993 Constitution of Russia

Question: When did the Soviet Empire break up?
Answer: Unanswerable

Question: Which name did Russia take after the rise of the Soviet Union?
Answer: Unanswerable

Question: What is the current unofficial name of Russia?
Answer: Unanswerable

Question: When wasn't the current name for Russia added to the Russian constitution?
Answer: Unanswerable

Question: What event led to the Russian Federation being renamed Russia?
Answer: Unanswerable