On what exact date was Drais's invention first publicly presented as a successful, steerable, two-wheeled personal vehicle?
Answer
June 12, 1817
The milestone moment for the machine occurred on June 12, 1817, when the German inventor presented his creation, marking its first documented successful operation.

Related Questions
Who is credited with developing the foundational, steerable, two-wheeled personal vehicle in the early 19th century?On what exact date was Drais's invention first publicly presented as a successful, steerable, two-wheeled personal vehicle?How was forward momentum primarily achieved on Drais's original wooden apparatus?What was the common German name given to Drais’s original, pedal-less device?What historical environmental crisis is cited as a likely catalyst creating demand for a non-animal-dependent means of travel around 1817?What key distinction separates the general term 'bicycle' from Drais's initial invention?What characteristic defined the immediate successor machine often referred to as the *boneshaker*?What crucial engineering elements did Drais solve, establishing the principle of tandem two-wheeled transport?What concept did Drais’s invention focus on, contrasting with the later goal of continuous mechanical drive?The operation of the Draisine is noted to be a direct predecessor to which contemporary device used for learning balance?