Iroha

The Iroha (いろは^?) is a Japanese poem, probably written in the Heian era (AD 794–1179).

It is famous because it is a perfect pangram, containing each character of the Japanese syllabary exactly once. Because of this, it is also used as an ordering for the syllabary.

Originally the poem was attributed to the founder of the Shingon Esoteric sect of Buddhism in Japan, Kūkai, but more modern research has found the date of composition to be later in the Heian Period.^[1]
The first record of its existence dates from 1079. It is famous because it is a perfect pangram, containing each character of the Japanese syllabary exactly once. Because of this, it is also used as an ordering for the syllabary.

Read the Iroha

A pangram (Greek: παν γράμμα, pan gramma, "every letter") or holoalphabetic sentence for a given alphabet is a sentence using every letter of the alphabet at least once. Pangrams have been used to display typefaces, test equipment, and develop skills in handwriting, calligraphy, and keyboarding. Some examples:

• in English, "The quick brown fox jumps over the lazy dog" (all 26 letters).