Through Father Maximilian’s efforts, the influence of the MI movement began to spread through Poland in the 1920s. As distances became too great for his one unaided human voice to reach, Maximilian realized that only the printed word would suffice. With a complete lack of capital, but full trust in providence, he began publishing the Knight of the Immaculata (Rycerz Niepokalanej) a sixteen-page magazine. Once when bankruptcy seemed imminent, he threw himself at the feet of the Immaculata and begged for help. As he was about to leave the church, he found an envelope on the altar with these words on it, “For thee, O Immaculate Mother.” Inside was the exact sum to pay the debt.
In 1927 when quarters for his printshop became too small, he entered into negotiations to purchase a large tract of land for a whole “City of the Immaculata” (Niepokalanow), where he and the friars would expand their apostolate. However, he again lacked capital. He explained to the landowner, Prince Drucki-Lubecki, that he could not afford the price. Abruptly the Prince decided to make a free gift of it to Maximilian and the friars. By 1939 Niepokalanow had become the largest Franciscan friary in the world with over 700 friars and students. The circulation of their magazine exceeded 750,000 copies per month.
https://kolbeshrine.org/st-maximilian-kolbe-novena-prayers