Hawaiian alphabet not make it a letter of the alphabet. In publishing the Hawaiian Bible, they used the okina to distinguish ' ('my') from ' ('your'). It was not until 1864 that the okina became a recognized letter of the Hawaiian alphabet. As early as 1821, one of the missionaries, Hiram Bingham, was using macrons in making handwritten transcriptions of Hawaiian vowels. The macron, or "", was used to differentiate between short and long vowels. The current official Hawaiian alphabet consists of 12 letters: five vowels (A a, E e, I i, O o, U u) and seven consonants (H h, K
English orthography for "analyse", "catalog" for "catalogue" and so forth. These spellings already existed as alternatives, but Webster's dictionaries helped make them standard in the US. See American and British English spelling differences for details. Besides the quirks the English spelling system has inherited from its past, there are other idiosyncrasies in spelling that make it tricky to learn. English contains, depending on dialect, 24–27 separate consonant phonemes and 13–20 vowels. However, there are only 26 letters in the modern English alphabet, so there is not a one-to-one correspondence between letters and sounds. Many sounds are spelled using different letters or multiple