Christian communities, Singapore outranks other nations in terms of Christians who obtain a university degree in institutions of higher education (67%), followed by the Christians of Israel (63%), and the Christians of Georgia (57%). According to the study, Christians in North America, Europe, Middle East, North Africa and Asia-Pacific regions are highly educated since many of the world universities were built by the historic Christian Churches, in addition to the historical evidence that "Christian monks built libraries and, in the days before printing presses, preserved important earlier writings produced in Latin, Greek and Arabic". According to the same study, Christians have a significant amount of gender equality in educational attainment, and the study suggests that one of the reasons is the encouragement of the Protestant Reformers in promoting the education of women, which led to the eradication of illiteracy among females in Protestant communities. According to the same study "there is a large and pervasive gap in educational attainment between Muslims and Christians in sub-Saharan Africa" as Muslim adults in this region are far less educated than their Christian counterparts, with scholars suggesting that this gap is due to the educational facilities that were created by Christian missionaries during the colonial era for fellow believers. Literature and poetry Christian literature is writing that deals with Christian themes and incorporates the Christian world view. This constitutes a huge body of extremely varied writing. Christian poetry is any poetry that contains Christian teachings, themes, or references. The influence of Christianity on poetry has been great in any area that Christianity has taken hold. Christian poems often directly reference the Bible, while others provide allegory. While falling within the strict definition of literature, the Bible is not generally considered literature. However, the Bible has been treated and appreciated as literature; the Bible is a corner stone of Western civilization. The King James Version in particular has long been considered a masterpiece of English prose, whatever may be thought of its religious significance. The Authorized Version has been called "the most influential version of the most influential book in the world, in what is now its most influential language", "the most important book in English religion and culture", and "the most celebrated book in the English-speaking world". David Crystal has estimated that it is responsible for 257 idioms in English, examples include feet of clay and reap the whirlwind. Furthermore, prominent atheist figures such