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  2. Mnemonic major system - Wikipedia

    en.wikipedia.org/wiki/Mnemonic_major_system

    Mnemonic major system. The major system (also called the phonetic number system, phonetic mnemonic system, or Herigone's mnemonic system) is a mnemonic technique used to help in memorizing numbers. The system works by converting numbers into consonants, then into words by adding vowels. The system works on the principle that images can be ...

  3. Hebrew numerals - Wikipedia

    en.wikipedia.org/wiki/Hebrew_numerals

    The Hebrew numeric system operates on the additive principle in which the numeric values of the letters are added together to form the total. For example, 177 is represented as קעז ‎ which (from right to left) corresponds to 100 + 70 + 7 = 177. Mathematically, this type of system requires 27 letters (1-9, 10–90, 100–900).

  4. Tap code - Wikipedia

    en.wikipedia.org/wiki/Tap_code

    X. Y. Z. The tap code, sometimes called the knock code, is a way to encode text messages on a letter-by-letter basis in a very simple way. The message is transmitted using a series of tap sounds, hence its name. [1] The tap code has been commonly used by prisoners to communicate with each other. The method of communicating is usually by tapping ...

  5. Morse code - Wikipedia

    en.wikipedia.org/wiki/Morse_code

    Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs. [3] [4] Morse code is named after Samuel Morse, one of the early developers of the system adopted for electrical telegraphy . International Morse code encodes the 26 ...

  6. Russian alphabet - Wikipedia

    en.wikipedia.org/wiki/Russian_alphabet

    The Russian alphabet contains 10 vowel letters. They are grouped into soft and hard vowels. [12] The soft vowels, е, ё, и, ю, я , either indicate a preceding palatalized consonant, or (with the exception of и ) are iotated (pronounced with a preceding /j/) in all other cases.

  7. Coptic script - Wikipedia

    en.wikipedia.org/wiki/Coptic_script

    The Coptic script is the script used for writing the Coptic language, the most recent development of Egyptian. The repertoire of glyphs is based on the uncial Greek alphabet, augmented by letters borrowed from the Egyptian Demotic. It was the first alphabetic script used for the Egyptian language. There are several Coptic alphabets, as the ...

  8. List of ISO 639 language codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_639_language_codes

    ISO 639 is a standardized nomenclature used to classify languages. Each language is assigned a two-letter (set 1) and three-letter lowercase abbreviation (sets 2–5). Part 1 of the standard, ISO 639-1 defines the two-letter codes, and Part 3 (2007), ISO 639-3, defines the three-letter codes, aiming to cover all known natural languages, largely superseding the ISO 639-2 three-letter code standard.

  9. Phoenician alphabet - Wikipedia

    en.wikipedia.org/wiki/Phoenician_alphabet

    The Phoenician alphabet [b] is a consonantal alphabet (or abjad) [2] used across the Mediterranean civilization of Phoenicia for most of the 1st millennium BCE. It was one of the first alphabets, and attested in Canaanite and Aramaic inscriptions found across the Mediterranean region. In the history of writing systems, the Phoenician script ...