Historical Humanities Extension: Independent Reading (2026-D026)
历史人文延展阅读·独立成篇（2026-D026）
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The 1884 Berlin Conference convened to regulate European colonization of Africa—but its minutes contain detailed discussions on standardizing railway gauge widths across colonies.
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Delegates debated whether to adopt British 4-ft-8½-in or German 1,435-mm tracks, knowing gauge choice would determine which empire controlled future mineral exports.
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