Affiliation shall be retrospectively effective from the time of birth of the child; provided, the right acquired by a third person shall not be prejudiced thereby.
Civil Act — Article 860 (Retrospective effect of affiliation)
민법 제860조
For AI agents and developers — get this article as JSON, with the English and current Korean effective dates and an outdated-translation flag, from the korea-law API or as an MCP tool:
https://mcp.apify.com?tools=kr-data/korea-law