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Dr. Yang, 34, was born in Hofei in Anhwei province, the son of a mathematician now teaching in Shanghai.

The suburbs and walls of Hofei bristle with defense works Chinese style.

When the war broke out, Li Hung Chang was seventeen years of age, living at Hofei in Anhui.

The first half of his existence was passed in comparative obscurity at Hofei in Anhui, a region remote from contact with foreign nations.