An objective scientific study of almost five centuries of history of the Jesuits (Society of Jesus) - a male spiritual order of the Roman Church, founded in 1540 and existing to this day. The author describes the emergence of the order and notes all the most important stages through which its development passed. Tells how a kind of Catholic salvation army under the supreme command of the pope spread its teachings in Europe, and then, through the efforts of missionaries, in America, Japan, China and Africa. Without losing sight of all the negative aspects of the activities of the Jesuits, Heinrich Böhmer at the same time tries to protect them from unfair attacks. The publishing layout of the book is saved in PDF A4 format.