landmark -
an anatomical structure used as a point of origin in locating other anatomical structures (as in surgery) or as point from which measurements can be taken
surgery a room where a doctor or dentist can be consulted; "he read the warning in the doctor's surgery"
landmark -
an event marking a unique or important historical change of course or one on which important developments depend; "the agreement was a watershed in the history of both nations"
juncture,
occasion an event that occurs at a critical time; "at such junctures he always had an impulse to leave"; "it was needed only on special occasions"
fall of man (Judeo-Christian mythology) when Adam and Eve ate of the fruit of the tree of knowledge of good and evil in the Garden of Eden, God punished them by driving them out of the Garden of Eden and into the world where they would be subject to sickness and pain and eventual death
landmark -
a mark showing the boundary of a piece of land
