This fascinating papyrus from the Fayyūm is dated to 909 AD. It records the divorce proceedings of a Christian named Sawīrah (Severus)
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I learned about it while reading the fabulous new book of Lev Weitz, Between Christ and Caliph, 2018, p. 133 @PennPress (read it!!):
upenn.edu/pennpress/book…
upenn.edu/pennpress/book…
jstor.org/stable/176219?…