CORRECTIONS TO PAGE ONE:
Type XXI Uboats "Elektroboote"
After World War II, the victorious powers (US, UK, Soviet Union)copied the German design for the Type XXI, which is considered the first real submarine.
CORRECTIONS TO PAGE TWO:
The Type XXI arrived too late for combat, but was used to rescue many German civilians from the Soviet Red Army and the constant Allied bomber attacks on German cities.
This happened in violation of Hitler's orders which stated that no civilians were to be be allowed aboard uboats for any reason, even for rescue.