And the ones that are worth mentioning, or all of them are worth mentioning, but I have in this diagram the most significant city states of ancient Greece that you'll hear a lot about. We talked about the Oracle at Delphi, the Olympic Games at Olympia. A lot of the conversation tends to focus around Sparta and around Athens. And then you'll also hear a lot about Corinth and Thebes. Sparta is famous for its militaristic society. It's often glorified, but it's also worth noting that they were significant slave owners at different parts in Spartan history. They had somewhere between seven and 20 slaves for every Spartan.