Benjamin Franklin's phonetic alphabet as follows: Franklin's proposed alphabet included seven letters to represent vowels. This set consisted of two new letters, in addition to five letters from the existing English alphabet: a, e, i, o, u. The first new letter was a formed as a ligature of the letters o and a, and used to represent the sound (as written in IPA). The second, ɥ, was used for . Franklin proposed the use of doubled letters to represent what he called long vowels, represented by modern phonemes thus: as the long-vowel variant for (or, in his notation, "cɩcɩ" versus "cɩ"), for ("ee" versus
English alphabet "i", were introduced in the 16th century, and "w" assumed the status of an independent letter. The variant lowercase form long s (ſ) lasted into early modern English, and was used in non-final position up to the early 19th century. Today, the English alphabet is now considered to consist of the following 26 letters: Written English has a number of digraphs, but they are not considered separate letters of the alphabet: Outside of professional papers on specific subjects that traditionally use ligatures in loanwords, ligatures are seldom used in modern English. The ligatures "æ" and "œ" were until the 19th