故事

1. Origins, structure, and basic meaning

• Structure: 故事 is read as こじ and is a noun for a historical anecdote or old story that may explain the origin of a proverb or cultural expression.
• Basic usage: The background of a proverb appears in ことわざの由来となった故事, while a regional tradition appears in 土地に伝わる故事.

2. Common pitfalls and similar expressions

• Background to a present expression
  • It often supplies context for understanding a modern proverb or cultural reference rather than merely listing an old event.
• Difference from 昔話
  • 昔話 broadly means a folktale or old story, while 故事 more strongly suggests a historical anecdote or an origin story.