Today's lecture is about the history of the bicycle. While many people assume the bicycle was invented in the 19th century, its earliest ancestor, the draisine, appeared in 1817 in Germany. It had no pedals; riders pushed their feet against the ground. The first pedal-driven bicycle, called the velocipede, emerged in France in the 1860s. However, it was not until the 1880s, with the invention of the chain drive, that bicycles became practical and safe. This design, known as the safety bicycle, allowed riders to travel faster and more comfortably, leading to a bicycle boom in the 1890s.
❓ Según la conferencia, ¿cuál fue la principal ventaja de la bicicleta de seguridad introducida en la década de 1880?
A. Era más ligero y más fácil de llevar.
B. Tenía transmisión por cadena, lo que la hacía más rápida y segura.