51.   Soon, four village women he had known since childhood came knocking at his door over several months, pressing him to get a vasectomy.

52.   The math now matches what the nation has known since last Tuesday.

53.   The presence of water in the deep freeze of a cloud has been known since about the turn of the century.

54.   The plot involves a racist senator, who, shot by a would-be assassin, calls to his side a black preacher he has known since childhood.

55.   The rough details of the accident have been known since Saturday night.

56.   The two had known each other since childhood, and Salinas had even convinced his friend to join the Border Patrol.

57.   There have been no pregnancies in eighth grade girls that she knows of since the program started three years ago, she said.

58.   They had shown her the first tenderness she had known since her parents disappeared.

59.   This was a guy I had known since approximately seventh grade.

60.   They sang duets at college functions and have been known since to sing at industry events.