...that Crete, although now Greek, had its own civilization well before Ancient Greece in the Minoan culture?
...that Philip II of Macedon was killed at the hands of one of his own bodyguards in Aegae, Pausanias of Orestis, and then the assassin was killed by some of the other bodyguards?
...that Tsakonian language, a dialect of Greek that is found on the Peloponnese, is actually descended from the Dorians?