What is the differences between Athen foreigners and Sparta foreigners?

In ancient Greece, Athens and Sparta had different approaches to foreigners. Athenians, who welcomed a diverse population, allowed metics (resident foreigners) to live in the city, granting them some rights but denying citizenship. In contrast, Sparta was more insular and restrictive; while it had a small number of non-citizen residents known as "perioikoi" who could engage in trade and crafts, they were not integrated into Spartan society and had limited rights. Overall, Athens embraced foreign influence, while Sparta prioritized maintaining its strict social order.