Design patents as we know them today were not originally eligible for patent protection in the United States, but that all changed in changed in 1842 after the first design patent was granted to George Bruce. Fast forwarding to 2023, over 150 years after the first design patent was granted, the one millionth design patent (D1,000,000) was granted to Agustina Huckaby for the ornamental design for a dispensing comb.

Source: Milestones in U.S. patenting | USPTO