美洲郑和学会卓越讲座 (英语线上）视频：
https://www.youtube.com/watch?v=UQRTRBkcN8g&t=1807s （33分钟）
Zheng He Society of the Americas 2021 Distinguished Lecture
"Maps that Turn 600-Year World History Upside Down"
重点简介：
刑侦科学方法的基本概念： 动机，能力，时机，证据，数据逻辑
明代永乐、郑和等大航海的动机
明代大航海的能力，耶稣会士文献改写自郑和文献
中西方大航海能力与时段比较
数据还原，比较《坤舆万国全图》，1570年Ortelius 世界地图，1594年Plancius 世界地图，今日卫星遥感地图 - 美洲西北部，北极圈测绘比较。阿拉斯加实地考察。
《坤舆万国全图》成图的历史印记，欧洲史与日本史排除利玛窦与李之藻为作者
中西交流史，人类历史上首次全球化的历史影响与前瞻
线上会议八十余位参加者来自亚、欧、美，不乏政、经、文、史、科学界专业人士。
以下是一些听众的评语：
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Thanks for a masterful presentation in the YouTube video. Truly amazing Chinese accomplishments in the 15th century and awesome that China then had half of global GDP to finance the voyages. Something all Chinese should be rightfully proud of. (Current affairs commentator, Europe)
a real master piece! (Global history group member)
fascinating presentation. Thx!
Most interesting recount of the history of mapping the world with countless research details. The science behind the explorations, from building ships the size of football fields , navigation through uncharted territories, survival at sea, details of mapping, etc. 600 years ago is simply mind-boggling. It also answered many of the questions I've had of how the massive ships were built, the details within the ships, and how they operated. Thanks, SL, for a job well-done.
I listened to the whole presentation by SL! Really impressed by the profound knowledge in what you did as a pastime! Absolutely professional. I salute to you but humbled by your achievements. Very well done。
[ThumbsUp] Let truth be known throughout the world.
精彩！ Very eloquent! With lots of detail and facts.
Congratulations on your beautiful and informative lecture. I admire your effort and achievement in uncovering a very important chapter on the Overseas Chinese History. We need to start a movement to rectify this history. .... Westerners are notorious in exploiting the other people. American Indians are the most unfortunate victims. the very early Chinese immigrants might have received similar treatment. We will await your discoveries to come. Thank you.
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李兆良
2021.6.10
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