Meet the first known dramatist of Christianity, the most famous female exegete of the nature of the Trinity, and the author of the earliest known autobiography in English.
Long-standing differences between Western and Eastern Christians finally caused a definitive break, and Roman Catholics and Eastern Orthodox still remain separate.
It's being much-mentioned and much-lauded during all the millennial celebrations, but what, really, is this Christian faith that's so unfamiliar to most Western Protestants? Here's an introduction.