Margaret Knight

Not to give you an excuse to expand your carbon footprint or anything, but did you know that every time you forget your cloth bags at the grocery store you're probably making use of a woman-invented product? That's right; the flat-bottomed paper bag was invented by none other than feministorical innovator Margaret E. Knight, seen here in sketch-drawing form (unless this is how people actually looked in the 19th century):

Image courtesy of the children's book Marvelous Mattie: How Margaret E. Knight Became An Inventor

Though her life began as a child laborer in a cotton mill factory, Margaret Knight made a name for herself through engineering ingenuity. Read on for more!