Radical
Clan

Mnemonic

A family name is the oldest bond known to humanity. When one family name unites hundreds of people across generations, they form a clan. Every clan traces back to one original family name — a single ancestor whose legacy defined them all.
Additional thoughts
Picture a massive family tree where one surname at the top branches into hundreds of descendants, all belonging to the same clan. The family name IS the clan's identity.
Quick recall
One family name uniting all descendants forms a clan.