The orthographic practice of using the letter case distinction for marking proper names, titles etc. Unlike the Latin alphabet, the script has no concept of letter case. The form also lacks punctuation, diacritics, or distinguished letter case. Letter case is ignored in Pascal source. From this practice, the modern orthographic system of letter case for Greek arose. Certain codes resemble ISO-IR-111 with flipped letter case, which may have contributed to the confusion. Furthermore, unlike the typeset alphabet, the cursive alphabet has no letter case. Around 1300, letter case was increasingly distinguished, with upper- and lower-case B taking separate meanings.