Today we're going to discuss the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals and was pushed along by the rider's feet. In the 1860s, pedals were added to the front wheel, but these machines were very uncomfortable due to their rigid frames. It wasn't until the 1880s that the 'safety bicycle' with a chain drive and two equal-sized wheels became popular. Interestingly, the safety bicycle also introduced pneumatic tires, which greatly improved comfort and speed. By the 1890s, bicycles had become a common means of transport for ordinary people, especially in urban areas.