What ‘ means
It marks where a single quotation begins. British publishing commonly puts single quotes around the main quotation and double quotes around a quotation inside it; American style usually reverses that order. Follow your publication’s style guide.
Where did curly quotes come from?
They evolved from margin marks flagging quoted or notable passages. The quotation-mark family appears in print by 1516 and in England by 1521. These dates concern ancestors, not necessarily this exact shape; paired opening and closing marks developed later.
Don't confuse it with
1Questions people ask
1Why did my apostrophe become ‘?
Smart-quote software can misread the context. Correct the mark manually or disable automatic substitution.
How to type ‘
‘\2018Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

