History has many cases in one way or another way connected with submarines. These are unique structures, which can be controlled and operate under water. We present 10 interesting facts about the submarine ships, which you have not known.
Fact 1. The first mention of transport for lowering people under water can be found in one of the books of the ancient Greek historian Herodotus. In the manuscript, dating to 450 BC, he tells of a certain underwater bell, which helps a person dressed in a special suit, walks on the sea floor.
