Also lol that this picture conveniently cut out the continent of America, which is almost entirely Christian in the so-called "10/40 window".
It also strangely omits Italy and Greece, the heartlands of Christianity. It seems the missionaries include them (and Spain) in the "saved" population.
In my original post, I mentioned that the latitudes of this perilous parallelogram were curiously omitted, but I now notice that the boundaries of the 10/40 Window mirror the boundaries of the
Asiatic Barred ZoneThe ABZ doesn't extend over mainland China and Japan since the Chinese Exclusion Act and the Gentleman's Agreement made the 1917 law redundant, and it doesn't extend over North Africa since those people had no chance of emigrating anyhow.
The 10/40 Window is basically a modern manifestation of Yellow Peril.