Re: "A lot of good things started in the medieval period."
"Universal human rights are a product of Enlightenment"
Magna carta (1215) made such a good start at this that it took about 800 years before May managed to remove the concept of due process. The presumption of innocence didn't actually come from there but was introduced, I think from France, also in medieval times (maybe this is a further reason why May is in favour of Brexit - all these foreigners with inconvenient principles of law).