Today, I went to the city library and checked a lot of materials from the Spring and Autumn Period and the Warring States Period.

A professor of history at the city's college was also consulted.

I have to say that when Lao Dog started writing this book again, there were still many deficiencies in the historical materials prepared.

The motivation for writing this book is written by the interest of the old dog, to be honest, many of the historical materials in front of me are indeed not well prepared, and it is still during the epidemic, so I can't go out to check the information.

The old dog is here to hope that all book friends will be more patient, and the old dog will try his best to write the following storyline.

Here, thank you for your continued support for this book, and I hope that all book friends will continue to support the old dog.

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