I want to know the answer to the following question:
What superpower in 1980 created a stamp in honor of Avicenna?
All the background I'm provided with is that "In 1980, the Soviet Union, which then ruled his birthplace Bukhara, celebrated the thousandth anniversary of Avicenna's birth by circulating various commemorative stamps with artistic illustrations, and by erecting a bust of Avicenna based on anthropological research by Soviet scholars.[citation needed]". Is that enough to answer the question?
Answer: yes