Analysis of information sources in references of the Wikipedia article "Nhắn tin văn bản" in Vietnamese language version.
Just over fifty years ago, in October 1933, the Deutsche Reichspost as it was then known, opened the world's first public teleprinter network.
Telex originated in Germany and rapidly expanded to other countries after World War II.
1984 [...] Sitting at a typewriter at his home in Bonn, Germany, Friedhelm Hillebrand types random sentences and questions, counting every letter, number, and space. Almost every time, the messages amount to fewer than 160 characters — what would become the limit of early text messages — and thus the concept for the perfect-length, rapid-fire 'short message' was born.
Telex originated in Germany and rapidly expanded to other countries after World War II.
