title: Synthetic rubber
context: The expanded use of bicycles, and particularly their pneumatic tires, starting in the 1890s, created increased demand for rubber. In 1909, a team headed by Fritz Hofmann, working at the Bayer laboratory in Elberfeld, Germany, succeeded in polymerizing isoprene, the first synthetic rubber.[3][4]
question: Who made the first synthetic rubber?
answers.text: Fritz Hofmann Fritz Hofmann