Complex sentence: The next significant milestone was in 1984, with the extension of funding from the provincial government, the school is now funded completely through the MSSB and the Congregation of Christian Brothers have relinquished their involvement in the school.
Split into simpler sentences: The next significant milestone was 1984 and the extension of funding from the provincial government. The school is now funded completely through the MSSB, and the Congregation of Christian Brothers have relinquished their involvement in the school.