《明史·志·卷四》
四年夏天，淮安、扬州发生蝗灾。
四年夏，淮安、扬州蝗。
In the summer of the Fourth Year, locusts plagued Huai'an and Yangzhou.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 四年夏，淮安、扬州蝗。 [/INST] In the summer of the Fourth Year, locusts plagued Huai'an and Yangzhou.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 四年夏，淮安、扬州蝗。
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In the summer of the Fourth Year, locusts plagued Huai'an and Yangzhou.
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