January 7, 367: Early church father Athanasius, famous for his battles against the Arian heresy, writes a letter containing a list of what he thinks should be considered the canon of Scripture. Over time, his list would be accepted by the church (see issue 43: How We Got Our Bible and issue 28: 100 Most Important Events in Christian History).
January 7, 1536: Catherine of Aragon, whose divorce from Henry VIII was the catalyst for the English Reformation, dies (see issue 48: Thomas Cranmer).
January 7, 1844: Bernadette Soubirous, whose visions of Mary led to the establishment of the Shrine of Lourdes, is born.