33 AD - Begin of the church - Acts chapter 2

250 AD - Old Testament/Hebrew Bible canon agreed on

312 AD - conversion Constantine the Great - Christianity Roman Empire established

325 AD - Council of Nicaea

364 AD - Council of Laodicea - most of Bible canon affirmed

381 AD - Council of Constantinople

393 AD - Council of Hippo - New Testament canon closed

431 AD - Council of Ephesus

451 AD - Council of Chalcedon - separation of Ethiopian Orthodox Church

1054 AD - separation Eastern Orthodox Church and (Western) Roman Catholic Church

1517 AD - Protestant Reformation

1545-1563 AD - Council of Trent in Roman Catholic Church