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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] Near his birthplace in Qishlak Afshona, some 25 km (16 mi) north of Bukhara, a training college for medical staff has been named for him.[year needed] On the grounds is a museum dedicated to his life, times and work.[citation needed]

What superpower in 1980 created a stamp in honor of Avicenna?
the Soviet Union