I can see Hadrian's wall

Looks photoshopped to me: left and right fox are just mirrowed.

I am surprised by the high English proficiency of the Australians. Can't believe that when listening to them.

What strikes me more are on average 6 (six!) children per woman in 1960. (Compared to about 3.5 in the US and about 2.5 in Western Europe at the same time)

An alternative explanation is that the algorithms that load the feeds are trained on consumer preferences not the hopes of the content providers. If you upload 10000 videos on Latin grammar, but none of the users ever watches them, after a while they will not show up in feeds very often.

Congratulation!