How did Muslims create such an advanced society in Spain?

They conquered the Liberian peninsula and also made Important advancement in surgery.

Explanation:

Muslim forces invaded and in seven years conquered the Iberian peninsula. It became one of the great Muslim civilisations; reaching its summit with the Umayyad caliphate of Cordovain the tenth century. Muslim rule declined after that and ended in 1492 when Granada was conquered.

Muslims made important advances in surgery. They anaesthetised patients with cannabis and opium, used mercury and alcohol as antiseptics , and had rules about hygiene

i know social security wasn't one.

explanation:

hope my answer has you!

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.