Shen Defu, Wanli yehuo bian (preface 1606, supplement 1619), juan 29 'Hongzhi portents', Chinese Wikisource
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Shen Defu (about 1606): 'stones fell like rain, the large 4-5 hu, the small 2-3 hu; they struck dead several tens of thousands' (2nd month 1490), in a list of portents