MacronCharacterTest

Use either type of entity code in your wiki or HTML source code. Theoretically, the UTF code is future-proof, whereas the HTML code will work better with older browsers.

Character name	HTML entity code	UTF entity code	Glyph
CAPITAL LETTER A WITH MACRON	Ā	Ā	Ā
SMALL LETTER A WITH MACRON	ā	ā	ā
CAPITAL LETTER E WITH MACRON	Ē	Ē	Ē
SMALL LETTER E WITH MACRON	ē	ē	ē
CAPITAL LETTER I WITH MACRON	Ī	Ī	Ī
SMALL LETTER I WITH MACRON	ī	ī	ī
CAPITAL LETTER O WITH MACRON	Ō	Ō	Ō
SMALL LETTER O WITH MACRON	ō	ō	ō
CAPITAL LETTER U WITH MACRON	Ū	Ū	Ū
SMALL LETTER U WITH MACRON	ū	ū	ū
3 EM DASH	—		—

Here is the full Greek character set.

Here are all Unicode Characters as Named and Numeric HTML Entities