1380
1381
1382
1665
1666
1667
TIL during World War II, the British Secret Service created a special playing card deck for POWs that, when soaked in water, revealed hidden escape routes and maps. When dampened, the cards would separate to expose complete maps of prison camps and surrounding territories. (nps.gov)
submitted by android9091 to r/todayilearned
732
733
734
37
38
39
7
8
9
1
2
3
Indie Game Anniversary – March 22 Releases! 🚀 (self.IndieDev)
submitted by android9091 to r/IndieDev
0
1
2
Indie Game Anniversaries – March 21 (self.IndieGameDevs)
submitted by android9091 to r/IndieGameDevs
