Did Sparta have a social class system?

Sparta's social system was created in 783 b.c. Sparta was unique in ancient Greece for its social system and constitution, which completely focused on military training and Excellence. Its inhabitants were classified as Spartiates (Spartan citizens, who enjoyed full rights), Mothakes (non-Spartan free men raised as Spartans), Perioikoi (freedmen), and Helots (state-owned serfs, enslaved non-Spartan local population).