歷史地理資源：
商代
https://bitmummi.blogspot.com/2018/11/blog-post_4.html
周代
https://bitmummi.blogspot.com/2020/03/blog-post_15.html
日本
https://bitmummi.blogspot.com/2019/10/blog-post_24.html
瑪雅
https://bitmummi.blogspot.com/2018/07/blog-post_17.html
各國
https://bitmummi.blogspot.com/2019/02/blog-post_0.html