HTML character map

In HTML (and XML), there are 'character entity reference' that are used to represent non-ASCII characters. E.g. the character '→' can be encoded as →, to use in a non-Unicode-compatible text format. These characters will follow the style and size of your font.
For Emoji characters like 🥁 and 😆, check the Emoji character map.

­	shy: soft hyphen (discretionary hyphen)
²	sup2: superscript two (superscript digit two, squared)
¹	sup1: superscript one (superscript digit one)
¼	frac14: vulgar fraction one quarter (fraction one quarter)
È	Egrave: Latin capital letter E with grave accent
Ü	Uuml: Latin capital letter U with diaeresis
ù	ugrave: Latin small letter u with grave accent
Ψ	Psi: Greek capital letter Psi
α	alpha: Greek small letter alpha
η	eta: Greek small letter eta
μ	mu: Greek small letter mu
υ	upsilon: Greek small letter upsilon
‡	Dagger: double dagger, double obelisk
∇	nabla: del or nabla (vector differential operator)
√	radic: square root (radical sign) math
∴	there4: therefore sign
≈	asymp: almost equal to (asymptotic to)
⊆	sube: subset of or equal to
⌋	rfloor: right floor
⟩	rang: right-pointing angle bracket (ket)[r]

Wikipedia