查出来了：

来源: 于 2021-05-04 08:57:58 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次
Karl von Drais
 
A German baron named Karl von Drais made the first major development when he created a steerable, two-wheeled contraption in 1817. Known by many names, including the “velocipede,” “hobby-horse,” “draisine” and “running machine,” this early invention has made Drais widely acknowledged as the father of the bicycle.