Yup you guessed it, blue jeans came from the 19th century. The first pair to roll off the tailor's patent came in 1873. Jacob Davis, a Nevada tailor, partnered with Levi Strauss. Levi was trained in Germany and in 1853 left New York for San Francisco. He sold dry goods, tents, linens, etc. to the 49ers who had come for the California Gold Rush.
The original jeans were called "waist overalls" and were made from duck canvas (brown) and heavy blue denim fabric. The duck fabric never caught on but the blue jeans did. The company is still going strong.