chastity, and obedience, the new congregation added a fourth vow, that of dedication to the Christian education of youth, especially the poor. Soon the Pious Schools began to expand outside of Rome. In June 1616, Calasanz opened a foundation of the Pious Schools at Tusculo in the summer resort of Frascati. The school, which is still in operation, opened in August 1616, and Calasanz brought to it a painting of the Mother of God, Our Lady of Grace. He then opened schools in Narni (1618), which is located 42 miles from Rome and is where he completed writing his Constitutions, Moricone (1619), Magliano (1620), and Norcia, Carcare, and Fonano (all 1621). The congregation was made a religious order 18 November 1621 by a brief of Pope Gregory XV, under the name of Congregatio Clericorum Regularium Pauperum Matris Dei Scholarum Piarum. The term "Pauline" was dropped by this pope, although it had been part of the original name due to Pope Paul V. The constitutions were approved 31 January 1622 by Gregory XV, and had all the privileges of the mendicant orders conferred upon it, Calasanz being recognized as general superior, his four assistants being Blessed Pietro Casani, Viviano Vivani, Francesco Castelli and Paolo Ottonelli. On 7 May of the same year the novitiate of St. Onofrio was opened. The Order began growing rapidly. It soon expanded into Liguria, and between 1621 and 1632, established schools at Carcare, Savona, two at Genoa, and a short-lived one at Carmagnola. The first Piarist province was established in 1623 in Liguria. The Roman Province would be formally established in 1626. Meanwhile, in Rome, Cardinal Tonti gave a property to St. Joseph, which opened in 1630 with 8 students as Collegio Nazareno. It soon became the flagship school of the Pious Schools in Rome. There was a failed attempt in 1625 to establish schools in Naples, but after another attempt, the Province of Naples would be established in 1627. Between 1630 and 1641), several schools were opened in Tuscany. They were closed briefly following an outbreak of the plague, but they were soon reopened, and Tuscany would become a province in 1630. One of the most famous of these schools was the school at Abacus, which emphasized mathematics and science. It also offered an Algebra course for adults, and it opened a School for Nobles. In 2007, the four Italian provinces merged into a single