Analysis of information sources in references of the Wikipedia article "581 BC" in English language version.
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六月癸酉,季孙行父、臧孙许、叔孙侨如、公孙婴齐帅师会晋郤克、卫孙良夫、曹公子首及齐侯战于鞍,齐师败绩。
The conclusions from the analysis are as follows. (1) Jerusalem fell in the fourth month (Tammuz) of 587 BC. All sources which bear on the question—Jeremiah, Ezekiel, and 2 Kings—are consistent in dating the event in that year.