Meet Isaac R. Johnson, Black Man Who Invented And Patented The Dismountable Bicycle Frame
It was difficult for an African American to patent an invention, especially in the late 1800s. On October 10, 1899, Isaac R. Johnson overcame this challenge by patenting the bicycle frame. Isaac R. Johnson was born sometime in 1812 in New York. While he was not the first to invent the bicycle frame, he was … Read more