Wilson cloud of a 13.7-kiloton nuclear explosion code-named ยซSeminoleยป, that was conducted in a water tank on the Bogon island of Eniwetok Atoll, June 6, 1956. @atomicarchive
The Cave of Altamira is renowned for its numerous parietal cave paintings featuring contemporary local fauna and human hands, created between 18,500 and 14,000 years ago during the Upper Paleolithic. The earliest paintings in the cave were executed around 35,600 years ago. @KalkhasTheSeer