Multiple choice Magna Carta was signed in 1215 1485 1138 1189 Reveal answer Fill a bubble to check yourself A Correct answer Explanation Magna Carta was sealed by King John at Runnymede on June 15, 1215, establishing the principle that even the king was subject to the law. 1485 marks the Tudor accession, 1138 is too early, and 1189 was Richard the Lionheart's reign.