Looped square

The looped square (⌘), also known as Saint John's Arms, Saint Hannes cross (related to Swedish sankthanskors, Danish johanneskors, and Finnish hannunvaakuna or käpälikkö), and as the command-key symbol due to its use on the command key on Apple computer keyboards, is a symbol consisting of a square with outward pointing loops at its corners. It is referred to as a looped square, for example, in works regarding the Mississippian culture (approximately 800 AD to 1600 AD). It is also known as the place of interest sign when used on information signs, a practice that started in Finland in the 1950s, spreading to the other Nordic countries in the 1960s. It is an ancient symbol used by several cultures, and remains in common use today. It belongs to a class of symbols which are called valknute in Norway.