My esoteric and rather pointless PhD thesis concentrated on the semantics of quantification and anaphora, something which can be seen in so-called donkey sentences such as Every farmer who owns a donkey beats it. Discussion of such sentences originates with mediaeval philosophers, although I observed in a footnote that the Stoic philosopher Chrysippos discusses related sentences such as If a man is in Athens, he is not in Rhodes. So I was rather pleased to see in a web page on strange deaths (at
http://www.digital-karma.org/culture/facts/list-of-unusual-deaths) the following:
207 BC: Chrysippus, Greek stoic philosopher, is believed to have died of laughter after watching his drunken donkey attempt to eat figs.