As per the Wikipedia links, it's generally considered by scholars to be the origin of all alphabets and an early alphabetic script. Abjad is a term invented in 1990 to distinguish early alphabetic scripts without vowels from later scripts with them. Effectively every scholar agrees that Canaanite/Aramaic/Hebrew/Arabic are alphabetic systems (while also acknowledging them as abjads).
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As per the Wikipedia links, it's generally considered by scholars to be the origin of all alphabets and an early alphabetic script. Abjad is a term invented in 1990 to distinguish early alphabetic scripts without vowels from later scripts with them. Effectively every scholar agrees that Canaanite/Aramaic/Hebrew/Arabic are alphabetic systems (while also acknowledging them as abjads).