The history of the appearance of the letter eszet is actually quite interesting, although at first it may seem that this is just an old letter that was invented to complicate the life of everyone who learns German. It all started back in the Middle Ages, when people wrote with quills and ink. Back then, different combinations of letters were used to make a sound similar to our “s” - both the Latin “s” and the old German “z”. To speed up the writing process and make it more compact, they began to combine these letters into one symbolic combination, which gradually led to the emergence of eszet. By the way, the letter itself used to look quite different, and only in the 19th century it began to be used as we see it today.
Interestingly, eszet exists only in German, and in many other languages similar sounds are denoted differently. For example, in Austria and Switzerland this letter was abolished altogether, replacing it with “ss”. But in Germany it is loved and continues to be used, because it makes the language not only correct, but also stylish!