About Persian and Iranian Abacus
During the Achaemenid Persian empire around 600 BC, the Iranians began using the abacus. In the Parthians, Sassanids and Iranian scientists, scholars and historians empires; concentrated on exchanging knowledge and inventions of the countries around them: India, China; and the Roman Empire when it is believed that expanded into other countries.
Lack of physical evidence or remains of the Persian and Iranian Abacus
Very little existing and accurate performance information Persian and Iranian Abacus, what we know of this, he has been rescued from the oral tradition from generation to generation in the villages of the region and circunvecionos. In addition to the stories of different historians throughout history but there is no compelling physical evidence of Persian and Iranian Abacus.