The Society of Jesus (
Latin: Societas Iesu, S.J., SJ, or SI) is a 
religious order of men called Jesuits, who follow the teachings of the . Jesuit  and 
brothers—also sometimes known colloquially as "
God's Marines" and as "The Company", this terminology because of founder 
Ignatius of Loyola's military background—are engaged in 
evangelization and apostolic ministry in 112 nations on six continents reflecting the 
Formula of the Institute(principle) of the Society. They are known in the fields of 
education (schools, colleges, universities, seminaries, theological faculties), 
intellectual research, and cultural pursuits in addition to 
missionary work, giving retreats, hospital and parish ministry, promoting 
social justice and ecumenical dialogue. 
The Society was founded by St. Ignatius who, after being wounded in battle, experienced a religious conversion and composed the 
Spiritual Exercises in order to help others to follow the teachings of 
Jesus Christ more closely. In 1534, Ignatius gathered six young men, including 
St. Francis Xavier and Bl. 
Pierre Favre, and together they professed vows of poverty and chastity, and then later, obedience, including a special vow of obedience to the Pope. Rule 13 of Ignatius' Rules for Thinking with the Church said: "That we may be altogether of the same mind and in conformity, if [the Church] shall have defined anything to be black who to our eyes appears to be white, we ought in like manner to pronounce it to be black."Ignatius' plan of the order's organization was approved by Pope Paul III in 1540 by the 
bull containing the Formula of the Institute. The opening lines of this founding document would declare that the Society of Jesus was founded to "strive especially for the propagation and defence of the faith and progress of souls in Christian life and doctrine. The Society participated in the 
Counter-Reformation and later in the implementation of the Second Vatican Council in the 
Catholic Church. 
The Society of Jesus is 
consecrated under the 
patronage of 
Madonna Della Strada, a title of the 
Blessed Virgin Mary, and it is led by a 
Superior General currently 
Adolfo Nicolás. The headquarters of the Society, its 
General Curia, is in Rome. The historic curia of St Ignatius is now part of the Collegio del Gesù attached to the 
Church of the Gesù, the Jesuit 
Mother Church.