So where did Odysseus live? Prevailing opinion has been what is now known as Ithaki, but recently someone wrote a whole book which hypothesised it to be somewhere else, and now they're testing that hypothesis:

Most people think the modern-day Ionian island of Ithaki is the location.

But geologists are this week sinking a borehole on nearby Kefalonia in an attempt to test whether its western peninsula of Paliki is the real site.

It really brings home how old these stories are, that entire chunks of geography can change so radically you have to dig boreholes just to see the difference.