HTML code for an apostrophe

Question

Seemingly simple, but I cannot find anything relevant on the web.

What is the correct HTML code for an apostrophe? Is it ’?

Answer 1

Note that ' IS defined in HTML5, so for modern websites, I would advise using ' as it is much more readable than '

Check: http://www.w3.org/TR/html5/syntax.html#named-character-references