Two theories as to the form of the exclamation are:
1) Scribes saved space by putting the I above the O with the O eventually becoming a filled-in dot;
2) It was originally written as an O with a slash through it but the O eventually disappeared and the remaining slash evolved into today's exclamation mark.
Various slang terms: bang; pling; smash; soldier, control; screamer
Alt/ASCII Code: ALT 173 or ALT 0161
Use exclamation marks sparingly in text. Multiple marks such as "Good Grief!!!!!!" are not standard usage.
Although exclamations can take many forms, the examples here (sidebar) show typical styles: Rounded/tear drop with circle; Rectangle/Tapered over diamond; Rectangle/Tapered over square; Rectangle/Tapered over circle.


