Spear of Destiny became known that, after it was used to kill Jesus on the cross.
The spear was a weapon used by a Roman soldier to pierce the side of Jesus Christ at crucifixion. When the spear pierced the side it gained unimaginable powers when it absorbed Christ's blood. After the crucifixion, the spear disappeared presumably hidden by Christ's followers to protect it from the world because it's deadly powers. During World War II, the Nazis somehow found the spear and brought it on a U-boat bound for Germany. The powers of the spear caused the U-boat to malfunction and then it destroyed the whole vessel and killing it's crew along with it