fa مسجد و سیاست در عصر سلجوقی (با تأکید بر کارکرد تبلیغی- رسانه‌ای مسجد) تخصصي تاریخ اسلام Islamic History پژوهشي Research &quot;Mosque&quot; as one of the religious institutions of Islam- during the Prophet (PBUH) Era and then- was not only the place of worshipping but also the center of many social and political affairs. Seljuqe Period (429-590 A.H./1036-1193 A.D.) is one the most important eras in the history of Iran and Islam, regarding its religious and political aspects. In this era &quot;mosque&quot; had a very important position, especially in the field of dissemination of information. Public invitation for many important events that required the people presence or awareness were managed through the mosque. So in the time of <em>jihad</em> (holy war), mosques had the most important supporting role in advertising and promoting the people. However, according to historical approach less attention has been paid to the mosque and its functions in the Seljuqe era.<br> The aim of the present article is to describe the most important preaching functions of mosque through analyzing the historical sources and narratives on the basis of political developments, and to explain the role of mosques in dissemination of information and informing the field of politics and society, then &nbsp;to examine the efforts of Seljuqe government, political opposition and general public to use the mosque as an instrument to expand their messages and wishes. Achievement resulting from this research shows that regarding the lack of public networks of communication in the past, mosques had a key role in giving or sending information and different groups of people, according to their needs, took advantage of it. سلجوقیان, مسجد, تبلیغ, جهاد, ملازگرد, جنگ‌های صلیبی Saljuques, mosque, propaganda, jihad, Melazgerd, Crusades 29 50 http://journal.pte.ac.ir/browse.php?a_code=A-10-2-113&slc_lang=fa&sid=1 Majid Hajibabaee مجید حاجی بابایی m-hajibabaee@araku.ac. ir 1003194753284600193 1003194753284600193 Yes Ebrahim Aslany Malayery ابراهیم اصلانی ملایری a-motavally@araku.ac.ir 1003194753284600194 1003194753284600194 No Emamali Shåbāny امامعلی شعبانی shabani.2009@gmail.com 1003194753284600195 1003194753284600195 No