A lot of sewing techniques being taught and used today came from the mind of one innovator: Helen Blanchard. She held 28 patents, most related to sewing, and she shaped the way the garment industry functioned.
Research:

SYMHC Classics: COINTELPRO 1
39:12

Behind the Scenes Minis: It's Not Unprecedented
16:46

The Rendition of Anthony Burns, Part 2
43:32