The origins of the Theban alphabet are lost in the mists of time. It is often called "The Runes of Honorius" after its reputed inventor, Honorius of Thebes. It is also known as the 'Witch's Alphabet'.
Information about the Theban alphabet
If you need to type in many different languages, the Q International Keyboard can help. It enables you to type almost any language that uses the Latin, Cyrillic or Greek alphabets, and is free.
Note: all links on this site to Amazon.com, Amazon.co.uk and Amazon.fr are affiliate links. This means I earn a commission if you click on any of them and buy something. So by clicking on these links you can help to support this site.