How did Jan Matzeliger change the shoemaking industry in the 1800s? Stitching shoes was laborious, so Matzeliger invented the sewing machine.
O Adding laces to shoes was laborious, so Matzeliger invented the lacing machine.
O 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.