Morse code become commonly available until around 1920. Until 2003, the International Telecommunication Union mandated Morse code proficiency as part of the amateur radio licensing procedure worldwide. However, the World Radiocommunication Conference of 2003 made the Morse code requirement for amateur radio licensing optional. Many countries subsequently removed the Morse requirement from their licence requirements. Until 1991, a demonstration of the ability to send and receive Morse code at a minimum of five words per minute (wpm) was required to receive an amateur radio license for use in the United States from the Federal Communications Commission. Demonstration of this ability was still
Braille pattern dots-35 Braille pattern dots-35 The Braille pattern dots-35 ( ) is a 6-dot braille cell with the bottom left and middle right dots raised, or an 8-dot braille cell with the lower-middle left and upper-middle right dots raised. It is represented by the Unicode code point U+2814, and in Braille ASCII with the number 9. In unified international braille, the braille pattern dots-35 is used to represent unrounded, close or near-close, front to central vowel, such as /i/, /ɪ/, /ɪ̈/, or /ɨ/ when multiple letters correspond to these values, and is otherwise assigned as needed. Related to Braille pattern dots-35 are