Created page with "O <ref name="term_61733" /> <p> O is the fifteenth letter, and the fourth vowel in the English Alphabet. The shape of this letter seems to have been taken from the circul..."
(Created page with "O <ref name="term_61733" /> <p> O is the fifteenth letter, and the fourth vowel in the English Alphabet. The shape of this letter seems to have been taken from the circul...")