What Does Earth Look Like?

Watch the video I originally assigned for class on Friday. [What Does Earth Look Like?, VSauce ]

I have two reasons for showing this video to you:

1. To relate how history is sometimes like the visual spectrum: we can only see so much, and a lot is un-observable.

2. Our perspective changes how we see an object/event.

So, with that in mind, answer the following question by posting in this forum:

What is the most obscure, but significant, historical event of the last 500 years? Provide a link to your source.

Post at least a paragraph to explain both the obscurity of your chosen event, and its significance.

 

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