1400: there's an uncolored island in Japan together with one pixel
1400: an island in China gets uncolored though it was colored in the previous map.
Upon closer inspection, it seems it appears in 1350 BC, gets colored in 565 AD (despite China owning the land next to it for a while); in 814 China gets the island right to the west of Taiwan; in 843 both islands get uncolored, in 1000 the northern one disappears, reappearing in 1350...
Ok, listing everything is counterproductive, it'd be easier to just open all the maps and fix it
2017: Kosovo and Montenegro have the same color, is that correct?
1914-1980: what's this dotted line in the Northwest Territory of Canada?
1980: there is this one grey pixel south of Swaziland, presumably from the 1960 map
1900s-now: Should the
Ilemi Triangle be shown as claims, perhaps? There's a border change shown between 1980 and 2000 there.
1980: Mauritania-Mali border is inaccurate
1914-1945, 2000-2017: no Vatican?
1946-2017: no San-Marino?