Comparison What Items Looked Like When They Were First Invented

These are what these items used to look like when they were FIRST INVENTED! Have you ever wondered what the first X-RAY LOOKED LIKE? Or what about the first HELICOPTER! Watch this video to find out!

Sources:
https://pastebin.com/eRKkWGkb

This probability comparison/comparison video is made based on community discussions and relevant sources, numbers, and facts listed might not be up to date, valid, or in any specific order.

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