Mirza Javad Khan Sa'd-Al'Douleh was an efficient persons in Constitution events. There are different statements about him. His behaviors with pros and cons of Constitution and His position in this concern, is the subject of discussion in several sources of Qajar era. Finding new records indicate new aspects of his political life in Iran contemporary history.In this article, Sa'd-Al-Douleh reminded his efforts in historical events of that time by his letter to the National Consulative
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