@kristiedegaris So much important (and fascinating) history lost or hidden this way.
The Beinn Dearg wall runs above my family's old farm at Auchindrean, and I suspect the famine in question was what drove them to leave for the US. They had already been forced off the farm at that point, and much of the family had fled to Nova Scotia years previous. I've read their letters, complaining of predatory ship captains demanding to strip them of all their remaining assets in exchange for (un)safe passage to a chance of a life, and can't help but think of folk who may be in comparable straits across the channel today.
On the erasure of African history, another branch of my family had lived in Nigeria for a time and I encountered what seemed a particularly egregious example in studying the history of that place. The remarkable 15th century head sculptures found at Ife were initially claimed as evidence of the discovery of Atlantis by the first Westerner to excavate one in the 20th century. This despite the neighbouring Kingdom of Benin having had a tradition of making impressive sculptures using comparable techniques stretching back hundreds of years, and lasting right up to its destruction by the British less than 15 years prior to the first Ife find. The history being ignored here was virtually the present, and firmly in the photographic era. (There will be folk here much better versed in Nigerian history than I am - corrections welcome!)
I knew a little of Great Zimbabwe* and Sacsayhuamán (amazing places), but most of the other sites were new to me. Naletale is spectacular!
I wondered what Nigeria might have in the way of dry stone traditions, and found this notable example:
https://museum.ng/sukur-cultural-landscape/
* I found Henry Louis Gates Jr's series Africa's Great Civilisations really interesting on Great Zimbabwe and other such places often overlooked/ignored in Western histories
Thanks for another thought-provoking post, and hope you'll excuse the essay reply