Catholic schools are parochial schools or education ministries of the Catholic Church. As of 2011[update], the Church operates the world's largest non-governmental school system. In 2016, the church supported 43,800 secondary schools, and 95,200 primary schools. Catholic schools participate in the evangelizing mission of the Church, integrating religious education as the core subject within their curriculum.
Irish immigration provides the main contribution to the increases in Catholic communities across the globe. The Irish immigration established the revival of Catholicism through movement to countries across Europe, United Kingdom and Australia. Historically, the establishment of Catholic schools in Europe encountered various struggles following the creation of the Church of England in the Elizabethan Religious settlements of 1558-63. Anti-Catholicism in this period encouraged Catholics to create modern Catholic education systems to preserve their traditions. The Relief Acts of 1782 and the Catholic Emancipation Act of 1829 later increased the possibility to openly practice Catholicism in England and to create charitable institutions by the Church. This led to the development of numerous native religious congregations which established schools, hospitals, orphanages, reformatories, and workhouses.
Traditionally, Catholic schools originated as single sex schools. Catholic schools were previously required to depend on school fees and endowments. Endowments dropped off sharply causing fees to rise. This prevented some students from enrolling due to their inability to pay.
Catholic schools are distinct from their public school counterparts in focusing on the development of individuals as practitioners of the Catholic faith. The leaders, teachers and students are required to focus on four fundamental rules initiated by the Church and school. This includes the Catholic identity of the school, education in regards to life and faith, celebration of life and faith, and action and social justice.
Like other Christian-affiliated institutions, Catholic schools are generally nondenominational, in that they accept anyone regardless of religion or denominational affiliation, race or ethnicity, or nationality, provided the admission or enrollment requirements and legal documents are submitted, and rules & regulations are obeyed for a fruitful school life. However, non-Catholics, whether Christian or not, may need to participate in or be exempted from required activities, particularly those of a religious nature. These are in keeping with the spirit of social inclusiveness.