Early theological disputes prominently concerned divine oneness and attributes. Different schools disagreed about the interpretation of transmitted evidence and the proper role of rational arguments. Subsequent exchanges with philosophical traditions introduced new distinctions and vocabulary.
Descriptions of earlier kalām often concentrate on doctrinal proofs and disputes among religious schools. Later discussions also incorporate technical topics such as substances and accidents or possibles and necessities. It would be historically misleading to assume that the vocabulary and topics of one period exhausted the entire discipline.
Within Sunni theological scholarship, a major aim was to clarify accepted beliefs and address objections through reasoning and transmitted sources. Historical claims about the positions of particular groups should still be distinguished from the actual arguments under examination.