ʿIlm al-kalām (عِلْم الكَلام, literally "science of discourse"), usually foreshortened to kalām and sometimes called "Islamic scholastic theology" or "speculative theology", generally speaking, is the philosophical study of Islamic doctrine (aqa'id). It was born out of the need to establish and defend the tenets of the Islamic faith against the philosophical doubters. However, this picture has been increasingly questioned by scholarship that attempts to show that kalām was in fact a demonstrative rather than a dialectical science and was always intellectually creative. It is also important to note that the definition of Kalam has changed depending on the time and context and who it was used by. The Arabic term Kalām means "speech, word, utterance" among other things. There are many possible interpretations as to why this discipline was originally called so; one is that one of the widest controversies in this discipline, in the second and third centuries of Hijra, has been about whether the "Word of God" (Kalām Allāh), as revealed in the Quran, is an eternal attribute of God and therefore not created, or whether it is created words in the sense of ink and sounds. A scholar of Kalām is referred to as a mutakallim (plural: mutakallimūn'''), and it is a role distinguished from those of Islamic philosophers, jurists, and scientists. As early as in the times of the Abbasid Caliphate (750–1258 CE), the discipline of Kalām arose in an "attempt to grapple" with several "complex problems" early in the history of Islam, according to historian Majid Fakhry. One was how to rebut arguments "leveled at Islam by pagans, Christians and Jews". Another was how to deal with (what some saw as the conflict between) the predestination of sinners to hell on the one hand and "divine justice" on the other (some asserting that to be punished for what is beyond someone's control is unjust). Also Kalam sought to make "a systematic attempt to bring the conflict in data of revelation (in the Quran and the Traditions) into some internal harmony".