Extent of the [[Songhai Empire, AD 1500]]
Captured by the Songhai emperor Sonni 'Ali in 1468, it developed into Mali's most important trading center during the 16th century.
UNESCO: Culture
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。