然而，这种历史分期最基本的标准掩盖了大量的悖论。

Yet this most fundamental standard of historical periodization conceals a host of paradoxes.

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近十余年来，史学界开始反思并重新认识中国古史分期问题，逐渐认识到五形态的模式并不符合中国历史实际。

The historiography circle began to recognize and retrospect Chinese ancient history stages during the recent ten years and realized that the usual five stages mode didn't accord with Chinese history.

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在我国历史分期上泛指十九世纪中叶以前的时代。

In our history, staging refers to the era before the mid-nineteenth century.

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