{"data":{"id":"us-ca/civ-1577","jurisdiction":"us-ca","citation":"CIV § 1577","heading":"","body":"Mistake of fact is a mistake, not caused by the neglect of a legal duty on the part of the person making the mistake, and consisting in:\n1. An unconscious ignorance or forgetfulness of a fact past or present, material to the contract; or,\n2. Belief in the present existence of a thing material to the contract, which does not exist, or in the past existence of such a thing, which has not existed.","path":["Civil Code - CIV","DIVISION 3. OBLIGATIONS [1427. - 3273.91.]","PART 2. CONTRACTS [1549. - 1701.]","TITLE 1. NATURE OF A CONTRACT [1549. - 1615.]","CHAPTER 3. Consent [1565. - 1590.]"],"source_url":"https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zip","current_through":"2026-09-13","vintage":"","retrieved_at":"2026-09-14T05:56:33Z","sha256":"e3c3c5e9cb2da4bf61ca654ebee1ef9a83063d1536b27f3c0dd4cf9dd16659d6","source_id":"us-ca","stale":false,"prev":"us-ca/civ-1576","next":"us-ca/civ-1578"},"notice":"GroundRules: Original legal text. Not legal advice."}