11.   The Hopi and Navajo are among the larger tribes that have adopted writing systems and dictionaries to preserve their language.

12.   The sauce became an important symbol of Japanese culture -- along with the kimono and Japanese writing system, which were also discovered in China.

13.   The use of a writing system or orthography by people in the conduct of their daily lives to communicate over time and space.

14.   Unlike western Eurasia, with its plethora of early methods for recording language, including Sumerian cuneiform and Egyptian hieroglyphics, China developed just one writing system.

15.   With calligrapher Inga Dubay, she has designed the italic writing system used by the Portland Public Schools.

16.   Xu thumbed through several pages of a Chinese journal that published his examples of the Olmec and Shang writing systems.

17.   Now Vietnam is preparing again to pay tribute to Alexander de Rhodes, the Jesuit missionary who helped devise an easy-to-learn writing system for Vietnamese.

18.   The Mayas built cities, created sophisticated calendars, practiced maritime navigation on a large scale and had one of the most advanced writing system in the New World.

19.   The writing systems of ancient Yemen and Greece had a common source.

20.   They built large cities, created an accurate calendar, practiced maritime navigation on a large scale and had the most advanced writing system in the New World.