Because during they were having many schisms over religious practices.
The creation of the Anglican Church
1532
The Eastern Orthodox Church in Constinantinople split from the Roman Catholic Church in Rome.
No. The church of England split from the Roman Catholic Church during the time of Henry VIII, The church of England is not in union with Rome and does not recognize the Pope as the head of the church.
Since Rome denied King Henry VIII a divorce, he declared himself the head of the English Church and split from Rome. When his first daughter Queen Mary ascended the throne, she reconciled England with Rome but her efforts were overturned when her half-sister Queen Elizabeth came to power. Queen Elizabeth is credited for facilitating the complete separation from Rome.
Henry VIII broke with Rome and became the head of his own church, the Church of England. He decided to split with Rome because the Pope would not grant him a divorce so that he could marry Anne Boleyn.
Henry split with Rome in 1538
The main body of the Church was split into a eastern and western parts in the Great Schism in 1054. There were other, lesser, schisms, and there were always independent branches of the Church that did not look to Rome, or Constantinople, for leadership, but the large majority of Christians were part of the Church that divided.
They formally split the Christian Church apart They created two completely separate churches.
King Henry VIII of England, who split with Rome to found the Church of England.
Nothing can "split" the Catholic Church as it is divinely established and guarded. However, there have been two famous cases that tried: the Western Schism when there was a pope or antipope in Avignon and Rome; and the Eastern Schism when the Orthodox left the Catholic Church.
The two Christian churches that developed after the split in 1054 are the Roman Catholic Church, based in Rome and headed by the Pope, and the Eastern Orthodox Church, which has its headquarters in Constantinople (modern-day Istanbul) and is led by various patriarchs.