Human philosophy changed much over its history. It was dramatically altered after Zefram Cochrane's test of his warp drive, which initiated Earth's First Contact with an alien species. Within fifty years, poverty, hunger, and war among the nations of Earth had been abolished. Racism and other prejudices soon followed. The discovery of extraterrestrial life and new philosophies such as the Vulcan concept of IDIC, placed Humanity's self-image in a new perspective. (TOS: "Let That Be Your Last Battlefield" ; Star Trek: First Contact)