“As a senior in 1892 Leavitt was introduced to astronomy. She was fascinated by it, and after graduation she enrolled in a course to study the subject full time. Tragically Henrietta Leavitt was suddenly struck down by a serous illness, and she was forced to spend over two years at home recovering. Her illness left her profoundly deaf. ...when she felt fit enough she put forward her name in 1895 as a volunteer worker at Harvard College Observatory.”