10. Su Song (1020-1101)
Su Song appears to be an early “Renaissance man” from historical China. He made many advances in areas such as biology and astronomy, but his greatest influence was in the area of engineering. His surprisingly complex mechanical clock was a wonder of his time. Among many advancements this clock were the development of an escapement mechanism and chain drive. Unfortunately his clock was lost when his home was conquered by an invading army, but his original designs endured.
9. Pope Urban II (1042-1099)
Pope Urban II made himself one of the memorable popes by setting in motion centuries of strife and war: the Crusades. In what is still considered one of the most famous and influential speeches ever given, Urban II called the followers of Christianity to action against the Turks in the Holy Land. What followed was one of the most brutal and…
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