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After the sovereignty of Qajar Dynasty, which was about the same time as the significant progress of Europe, Iran began to get familiar with modern sciences in a serious manner. Moreover, the competition of different European countries throughout the world and the situation of Iran in the battlefield of these countries paved the way for Iranian people to become familiar with western civilization and have sight of new technology and science. This first steps toward obtaining modern sciences were taken in the era of Fath'ali Shah Qajar and continued until the era of Mohammad Shah. During these two epochs, primary efforts were devoted to obtain modern sciences in a limited manner proportional to the knowledge and understanding of Iranian scholars of these sciences