It’s useful to have a reference to see how unicode renders when tearing down and rebuilding things.

Sample 1, inside a code block:

«»‹› “” ‘’ 〖〗【】「」『』〈〉《》〔〕 ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ 
αβγδεζηθικλμνξοπρςτυφχψω ¤$¢€₠£¥ ©®™ §¶†‡※ •◦‣✓ ☞ ●■◆★♠♣♥♦ ○□◇☆♤♧♡♢ 
ᴁᴂᴈ ♩♪♫♬♭♮♯ ¿¡ ¶§ª - ‐ ‑ ‒ – — ― … ° 
⌈⌉ ⌊⌋ ∏∑∫∂√ ± ×÷⊕⊖⊗ ′″‴ ⁱ¹²³ ₀₁₂ π∞ 
∀¬∧∨∃⊦ ∵∴ ∎ ∅∈∉⊂⊃⊆⊇⊄ ∪∩ ≠≤≥≮≯≈≡≔ ℕℤℚℝℂ ←→↑↓ ↔ ↖↗↙↘ ⇐⇒ ↞↠↟↡ ⇞⇟ 
⌘⌥‸⇧⌤⌫⌦ ⎋⏏◀▶▲▼ ◁▷△▽ ⇄ ⇤⇥ ↹↵↩⏎ ⌨ ␣ ⎗⎘⎙⎚⌧ ⌚⌛⌶ ♿ ✂✄↶↷↺↻ ✉✍ ①②③ 
✝✚✡☥⎈☭☪☯☮☺☹ ☠☢☣☤♲♳⌬☼☾ ♀♂

Sample 2, free flowing:

«»‹› “” ‘’ 〖〗【】「」『』〈〉《》〔〕 ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ αβγδεζηθικλμνξοπρςτυφχψω ¤$¢€₠£¥ ©®™ §¶†‡※ •◦‣✓ ☞ ●■◆★♠♣♥♦ ○□◇☆♤♧♡♢ ᴁᴂᴈ ♩♪♫♬♭♮♯ ¿¡ ¶§ª - ‐ ‑ ‒ – — ― … ° ⌈⌉ ⌊⌋ ∏∑∫∂√ ± ×÷⊕⊖⊗ ′″‴ ⁱ¹²³ ₀₁₂ π∞ ∀¬∧∨∃⊦ ∵∴ ∎ ∅∈∉⊂⊃⊆⊇⊄ ∪∩ ≠≤≥≮≯≈≡≔ ℕℤℚℝℂ ←→↑↓ ↔ ↖↗↙↘ ⇐⇒ ↞↠↟↡ ⇞⇟ ⌘⌥‸⇧⌤⌫⌦ ⎋⏏◀▶▲▼ ◁▷△▽ ⇄ ⇤⇥ ↹↵↩⏎ ⌨ ␣ ⎗⎘⎙⎚⌧ ⌚⌛⌶ ♿ ✂✄↶↷↺↻ ✉✍ ①②③ ✝✚✡☥⎈☭☪☯☮☺☹ ☠☢☣☤♲♳⌬☼☾ ♀♂

Standards, standards always proliferate through the creation of new standards.