Writing systems introduced in the 1970s

writing system for languages of the Congo

Sutton SignWriting, or simply SignWriting, is a writing system for sign languages. It can be used to write any sign language, including American Sign Language, Brazilian Sign Language, Tunisian Sign Language, and many others.

romanization scheme for Cantonese Chinese

set of 60 letters (in the latter edition), used for writing various African languages; initially proposed in 1978 and revised in 1982

Totality of orthographic rules for the languages ​​of Cameroon

romanization system for Cantonese

abugida

ASCII representation format for ancient Greek

right|thumb|D'Nealian cursive writing