Here I present: Johannes Friedrich, “Extinct Languages”, 1957, PART TWO.
INTRODUCTION.
Many undeciphered writing systems exist today; most date back several thousand years. The term “writing systems” is used here loosely to refer to groups of glyphs which appear to have representational symbolic meaning, but which may include “systems” that are artistic and are not writing.

CHINESE undeciphered neolithic scripts are listed BELOW.
CHINESE NEOLITHIC UNDECIPHERED SCRIPTS.
1. Yellow River Civilization.
- Jiahu symbols – Peiligang culture, from China, c. 6600 – 6200 BC.
- Damaidi symbols – Damaidi, from China, earliest estimated dates range from the Paleolithic to approximately 3000 years ago.
- Dadiwan symbols – Dadiwan, from China, c. 5800 – 5400 BC.
- Banpo symbols – Yangshao culture, from China, 5th millennium BC.
- Jiangzhai symbols – Yangshao culture, from China, 4th millennium BC.
- Dawenkou symbols – Dawenkou culture, c. 2800 – 2500 BC.
- Longshan symbols – Longshan culture, from China, c. 2500 – 1900 BC.
2. Yangtze River Civilization.
- Wucheng symbols – Wucheng culture, from China, c. 1600 BC.
3. Other Chinese Areas.
- Sawveh – Guangxi, from China; possible proto-writing or writing.
Johannes Friedrich, “Extinct Languages”, 1957 listed the undeciphered scripts not in China BELOW.
- The Cretan-Minoan Script.
- The Carian Script.
- The Indus Valley Script.

