Military expansion. The Rashidun Caliphate expanded gradually; within the span of 24 years of conquest, a vast territory was conquered comprising Mesopotamia, the Levant, parts of Anatolia, and most of the Sasanian Empire. Unlike the Sasanian Persians, the Byzantines, after losing Syria, retreated back to Anatolia.
1 And the nature of this reality again can neither be consistently represented as a fixed and hard substance nor as an unalterable something, but only as a fixed order of recurrence of continually changing events or impressions.
consistency noun (SUBSTANCE) âº [ C or U ] the physical nature of a substance, especially a thick liquid, for example by being thick or thin, smooth or lumpy, etc.: She loved the creamy consistency of fresh paint. Melt the chocolate to a pouring (= easy to pour) consistency. Thesaurus: synonyms and related words.