This will be an ongoing project as there are so many wholes to fill. If any of you know someone with archive footage (film and pictures) it would be greatly appreciated. I would like to also work on the list of early Ethiopian Pilots. Please share information you have so we can build a timeline.
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For anyone who wants to build a similar timeline please use this freely available tool at timeline.verite.co. I would be glad to host your work as long as you have Source attribution.
The following video I think gives a very good historical perspective.