Today we're going to discuss the history of the bicycle. Now, many people assume the bicycle was invented in the 19th century, but in fact, the first two-wheeled vehicle, called a 'draisine', appeared in 1817. It was made of wood and had no pedals; you pushed it along with your feet. Later, in the 1860s, pedals were added to the front wheel. However, it wasn't until the 1880s that the 'safety bicycle' with a chain drive and two equal-sized wheels became popular, making cycling much safer and more accessible. Interestingly, this design remained largely unchanged for over a century.
❓ Xe đạp an toàn ra đời vào những năm 1880 có ưu điểm chính là gì?
A. A. Nó được làm từ các vật liệu nhẹ hơn.
B. B. Nó có bàn đạp gắn vào bánh trước.
C. C. Việc đi xe trở nên an toàn hơn và dễ dàng hơn cho mọi người.