These important and well-explained contents are presentations of the Supreme Leader in the second World Congress of Imam Reza (A.S) – (Murdad 1365) about the component of Jihad and political combat in the life of Imams (A.S) with the title (250 years old person), thus the continual and conterminous of the imam’s (A.S) movement exemplifies the direction that is heading to one destination, therefore, we undertook to gather his presentation about the life of inerrant Imams (A.S) which had delivered around this noble time, the fruition of the collection of presentations of the Supreme Leader which is now in your hand.

Accurately, the title of the book has been drawn from the enlightened words of the Supreme Leader and being an expression of his view towards political life [the effort of Imams (A.S)]. The reason for giving this name to the life of Imams (A.S) as; the 250 years old person, has been brought at the preamble of the book from his words in detail; therefore, it is important that you should benefit as you go through the introduction before entering inside the units of the book, in order to catch a full view of the 250 years old person and the subject of the book, Insha’Allah.

This book is composed of 17 units that its compilation method of contents of the biography of Imams (A.S) has been arranged in proper way from the period of the utmost prophet until the time of Imam Jawad, Imam Hadi and Imam Askari (A.S); in such a way that, the expression of Supreme Leader about these three prominent Imams has in this respect put in one section. In the first section, political life of the Prophet of Islam has been briefly scrutinized, which is worthy by considering the events of this period as a mirror that displays the entire life of Imams (A.S) and being measure and an element for understanding the initial movement of Islam in duration of 250 years. Three sections of this book are an exhibition to socio-political status of Islamic community more especially after the tragic occasion of Imam Hussein’s revolt until the era of Imam Sadiq (A.S). Gaining such information respectively, would help clear apprehension about the 250 years old person.

Broadly speaking, the explanations in this book are speeches and written articles taken from the Supreme Leader. Therefore, some parts of the book have directly encompassed texts as it has also included the oral presentations of the Supreme Leader. In this case, it is pensionable to the reader to be attentive when reading. Likewise, in regarding to the sense that the book has direct manuscripts from the Supreme Leader, owing to this, maintaining the principles of writing and editing has been the duty of the center of Sahba, however, all the direct principles in this book are being carefully observed by the reader.