Casablanca and business center of Morocco, although the national political capital is Rabat. The leading Moroccan companies and international corporations doing business in the country have their headquarters and main industrial facilities in Casablanca. Recent industrial statistics show Casablanca retains its historical position as the main industrial zone of the country. The Port of Casablanca is one of the largest artificial ports in the world, and the second largest port of North Africa, after Tanger-Med east of Tangier. Casablanca also hosts the primary naval base for the Royal Moroccan Navy. The original name of Casablanca was "Anfa", in Berber language, by
Tangier or slaves for tax purposes, even after their wholesale conversion to Islam. In the area around Tangier, these hateful taxes were mostly paid in female slaves or in tender lambskins obtained by beating the ewes to induce premature birth. Governor Yazid was murdered by Berber guards whom he had tattooed as slaves in , and in the 730s similar treatment from Governor Ubayd Allah and al-Muradi, his deputy at Tangier, provoked the Berber Revolt. Inspired by the egalitarian Kharijite heresy, Barghawata and others under Maysara al-Matghari seized Tangier in the summer of 740. In the Battle of the Nobles on