The history of mammography begins with the discovery of X-rays in 1895. But it took a very long time for breast imaging to advance, in part because it wasn't prioritized.
Research:

Dorothy Crowfoot Hodgkin’s Crystalline Chemistry, Part 2
43:14

Dorothy Crowfoot Hodgkin’s Crystalline Chemistry, Part 1
38:04

SYMHC Classics: Sarah Bradlee Fulton
32:28