Ebn e Sina

Ebn e Sina, or as known to westerners Avicenna, was a Persian man of knowledge and wisdom for his era.  He was born in a village close to Bukhara, in today's Uzbekistan, buried in Hamedan, Iran, and wrote his books and article, in topics ranging from astronomy to medicine,  in his era's scholarly language, Arabic.  So, today many from Uzbaks to Iranians and the Islamic world take pride in him as their own.  What I did not know and learned recently was that he is on bills of Tajikistan of all places!

Why do not  Iranians honor their scientists, scholars, and history in such ways?