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Writing system

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A writing system is a conventional method for representing a language through a set of symbols. These symbols are collectively known as a script. A writing system also includes the specific rules that govern how those symbols are used. These rules are called orthography. Orthography includes conventions like spelling and the ordering of symbols. Writing is a visual and tactile notation of language.

Diagram of the spoken, written, and signed modalities of language
Diagram of the spoken, written, and signed modalities of language

It is important to note that writing always emerges from an existing spoken or signed language. While many languages are spoken without being written, no written language exists without a spoken counterpart. Writing allows a community to analyze and record the structure of their language.

To understand how writing works, we must look at the grapheme. A grapheme is the basic functional unit of a writing system. It is the smallest significant element used to construct a text. Graphemes are similar to phonemes, which are the units of sound in spoken language. One grapheme can have several different visual forms. These different shapes are called allographs. For example, the letter "a" can be written in a double-storey or single-storey style.

Comparison between single- and double-storey ⟨a⟩
Comparison between single- and double-storey ⟨a⟩

The specific allograph a person chooses might depend on their handwriting or the writing instrument they use.

Writing systems are generally classified by how their graphemes relate to language units. One major category is phonographic systems. These systems use graphemes to represent the sounds of a language. Alphabets are a common type of phonographic system. They use letters to represent spoken phonemes. Alphabets are divided into three specific subtypes. Pure alphabets use letters for both consonants and vowels. Abjads primarily use letters for consonant sounds. Abugidas use letters that represent consonant-vowel pairs.

Sanskrit Brhama English alphabets (cropped)
Sanskrit Brhama English alphabets (cropped)

Syllabaries are another phonetic type. They use syllabograms to represent entire syllables or moras.

Another way to categorize writing is through morphographic systems. These systems use graphemes to represent units of meaning, such as words or morphemes. A common term for this is logographic writing. In these systems, a logogram is a single character that stands for a specific unit of meaning. Chinese characters are the only major logographic system still in use today. Because each character represents a meaning, these systems require many symbols. A person may need to know thousands of characters to write fluently. In contrast, most alphabets are much smaller, typically using fewer than 100 distinct symbols.

Writing did not begin as a complete system. It emerged from stages known as proto-writing. Proto-writing uses ideographs or mnemonic symbols to communicate. However, proto-writing cannot fully encode the complexities of a language. Examples include the Jiahu symbols from Neolithic China or the Vinča symbols from Europe. The Inca Empire used a system of knotted cords called quipu as a mnemonic device.

Comparative evolution of Cuneiform, Egyptian and Chinese characters
Comparative evolution of Cuneiform, Egyptian and Chinese characters

Over time, these symbols evolved. Through the rebus principle, symbols began to represent sounds rather than just direct ideas. This allowed people to write words that were difficult to draw.

True writing systems were invented independently in several locations. The earliest systems appeared during the late 4th millennium BC. Cuneiform was used to write the Sumerian language in Mesopotamia. Egyptian hieroglyphs also emerged during this same period, between 3400 and 3100 BC. It is believed these two systems were invented independently. Similarly, Chinese characters emerged on their own in the Yellow River valley. Mesoamerican scripts, like the Maya script, were also independent inventions. These different cultures developed distinct ways to represent sound and meaning.

Most modern alphabets share a common lineage. Alphabetic writing descends from morphographic systems. The first alphabets appeared to write a Semitic language in the Sinai Peninsula. This led to the Phoenician alphabet and later the Greek alphabet. The Latin alphabet descended from the Greek version. Today, the Latin alphabet is the most common script used globally.

Bible printed with Balinese script
Bible printed with Balinese script

Even though different scripts exist, they all serve the same purpose. They allow humans to record, share, and preserve the vast complexity of language.

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🖼️ Images & Media (6)
File:Diagram of the spoken, written, and signed modalities of language.svg
Diagram of the spoken, written, and...
File:Comparison between single- and double-storey ⟨a⟩.svg
Comparison between single- and...
File:Comparative evolution of Cuneiform, Egyptian and Chinese characters.svg
Comparative evolution of Cuneiform,...
File:Sanskrit Brhama English alphabets (cropped).jpg
Sanskrit Brhama English alphabets (cropped).jpg
File:Cherokee stop sign.png
Cherokee stop sign.png
File:Bible printed with Balinese script.jpg
Bible printed with Balinese script.jpg
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