Why did the Spartans and the Athenians dislike each other?

Not only were they rivals, but they were very different culturally. They shared a common language and gods but otherwise were substantially different. Athens was a maritime power that derived its wealth mostly from trade. read more

For most of their shared history, Athens and Sparta were on neutral or friendly terms and their interests aligned or at least did not conflict. So saying the Spartans and Athenians disliked each other is a generalisation akin to saying that the English and the French have had amicable relations throughout their shared history. read more