I wonder the logic and even history of why right to left came into being. Is there any benefit in choosing a directionality of one vs another.

One thing that comes to my mind- book binding is done on the left edge of the book/news paper. So if folds are created you would go read left paper first and then to the right. Now if you are parsing left to right at higher level- At lower level wouldn’t it become consistency of UX to offer left to right reading?