'Palestine is Southern Syria', The Map

I have blogged multiple times that the Arabs called today as "Palestinians", originally demanded not to be known as such and that the territory all called "Palestine" should be called "Southern Syria", not specifically "Palestine".

In other words, there was no unique Palestinian national identity among Arabs residing in the territory of what was accepted to be Palestine.  They were Syrians.

Here.

And here.

And also here.

And now, the map:

Take note.

So, is it the "Heritage of Palestine" or, the "Heritage of Southern Syria", etc.?

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UPDATE

...In line with the Sykes-Picot Agreement of 1916...the French occupied the northern Levant, from the Mediterranean to the Euphrates River and beyond...The French quickly realized that their Syrian dominion – two millions inhabitants in 1920 – was a patchwork of conflicting communities. Charles de Gaulle, who was stationed as a young staff officer in Beyrouth from 1929 to 1931, dryly observed, “The people who live here never contented themselves with anything nor anybody.”...According to Viscount Robert de Caix de Saint-Aymour, Syria did not exist and would never exist. It had to be partitioned into smaller but more homogeneous entities...The State of Lebanon was created in 1920, and turned six years later into the semi-independent "

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