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A fact from Vincent de Groof appeared on Wikipedia's Main Page in the Did you know column on 18 May2025(check views). The text of the entry was as follows:
Did you know... that Vincent de Groof successfully tested his bat-like flying machine (pictured) in 1874, only to die after crashing it 10 days later?
Latest comment: 1 year ago8 comments4 people in discussion
The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.
... that Vincent de Groof successfully tested his bat-like flying machine (pictured) in 1874, only to die after crashing it 10 days later? Source: Reay, D. A. (2014-05-18). The History of Man-Powered Flight. Elsevier. p.40. ISBN978-1-4831-4599-0. "he came to London and ascended beneath a balloon from Cremorne Gardens on 29th June / but on July 9th he ascended, cut the ropes supporting his machine from the balloon, and crashed to his death"