User:Corte128/sandbox

Lead Glass
While vulnerable to conditions of volatile temperature, it has an excellent insulating ability.

Between the 9th and13th Century
Throughout the Islamic Golden Age, the relatively tolerate societies of the various caliphates were still, on occasion, driven to enforce discriminatory laws against members of the Jewish faith. Examples of these and more extreme persecutions occurred under the authority of multiple, radical Muslim Movements such as that of the Fatimid Caliph Al-Hakim bi-Amr Allah in the 11th century, the Almohad Caliphate in the 12th century, and in the 1160s CE Shiite Abd al-Nabi ibn Mahdi who was an Imam of Yemen.

Late Middle Ages and Early Modern Period
Differentiation laws were enforced much more regularly following the decline of secular influence within Islamic society and external threats posed by non-Muslims.