Today we're going to discuss the history of the bicycle. Although many people think of the bicycle as a relatively modern invention, its origins actually date back to the early 19th century. The first two-wheeled vehicle, called a 'hobby horse,' was invented in 1817 by a German baron. It had no pedals, and riders pushed themselves along with their feet. Later, in the 1860s, pedals were added to the front wheel, creating the 'velocipede.' However, this design was uncomfortable due to its rigid frame and iron wheels. It wasn't until the 1880s that the 'safety bicycle' with a chain drive and equal-sized wheels became popular, making cycling much safer and more accessible to the general public.
❓ Что сделало «безопасный велосипед» более доступным для широкой публики?
A. Его лёгкая рама и резиновые шины
B. Его цепная передача и колёса одинакового размера