防御力最強のはずの「城塞都市」が日本で採用されなかった意外な理由【歴史解説】
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30:41
十字軍の歴史
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2:02:45
The Hittites I Docu-Drama
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27:01
なぜ日本とヨーロッパの弓はこんなにも形が違うのか?【歴史解説】
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18:48
[Meiji Era] 230: How Did Japan Win the Russo-Japanese War? [japanese History]
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25:40
The First Crusade
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21:43
Why Does Light Have Energy Despite Having Zero Mass? Exploring the True Nature of Mass
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19:21
Why are only China and India so populous?
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16:30