Old English was first written in runes, using the futhorc – a rune set derived from the Germanic 24-character elder futhark, extended by five more runes used to represent Anglo-Saxon vowel sounds, and sometimes by several more additional characters. From around the 9th century, the runic system came to be supplanted by a (minuscule) half-uncial script of the Latin alphabet introduced by Irish Christian missionaries. This was replaced by insular script, a cursive and pointed version of the half-uncial script. This was used until the end of the 12th century when continental Carolingian minuscule (also known as Caroline) replaced the insular.
What writing form came into use in the 1200's?