"Pakistan was born amid horrendous violence and indescribable dislocation—around 6.5 million Muslims moved from India to Pakistan, while 4.7 million Hindus and Sikhs left for India. Activist, revivalist Islam had grown in British India in part as a reaction to colonial rule, but also in opposition to Hindus, the majority. The name Pakistan was an acronym combining the first letters of the different provinces that made up the new country. But in Urdu, the language of the new nation, it also means “the land of the pure,” and there were many who wanted to purify it further. In 1956, Pakistan’s constitution declared the country an Islamic republic and prohibited non-Muslims from holding the office of head of state. In the 1960s, military dictators used religion as a rallying cry against India, feeding further intolerance against Hindus and appeasing Islamists. Social and cultural life continued unperturbed, but some now brandished Pakistan as a citadel of Islam."