How did Jan Matzeliger change the shoemaking industry in the 1800s? Stitching shoes was laborious, so Matzeliger invented the sewing machine.
Adding laces to shoes was laborious, so Matzeliger invented the lacing machine.
Adding heels to shoes was laborious, so Matzeliger invented the heeling machine.
Attaching the top of the shoe to the sole was laborious, so Matzeliger invented the lasting machine.