Semitic languages
The similarity of the Hebrew, Arabic and Aramaic languages was accepted by Jewish and Islamic scholars since medieval times. The languages were familiar to Western European scholars due to historical contact with neighbouring Near Eastern countries and through Biblical studies, and a comparative analysis of Hebrew, Arabic, and Aramaic was published in Latin in 1538 by Guillaume Postel. Almost two centuries later, Hiob Ludolf described the similarities between these three languages and the Ethiopian Semitic languages. However, neither scholar named this grouping as "Semitic".
Phoenicianism
The Arabic language is considered to exist in multiple forms: formal Arabic, commonly known as Modern Standard Arabic (a modern incarnation of Koranic or Classical Arabic), which is used in written documents and formal contexts; and dialectal variants, numbering some thirty vernacular speech forms, used in day-to-day contexts, and varying widely from country to country. The one spoken in Lebanon is called "Lebanese Arabic" or simply "Lebanese", and it is a type of Levantine Arabic, which, together with Mesopotamian Arabic, is classed by matter of convenience as a type of Northern Arabic. The point of controversy between Phoenicianists and their opponents lies in whether the differences between the Arabic varieties are sufficient to consider them separate languages. The former cite Prof. Wheeler Thackston of Harvard: "the languages the 'Arabs' grow up speaking at home, are as different from each other and from Arabic itself, as Latin is different from English."