Linked from
The 16 pages that link to Otto Lilienthal, each with the reason it gives.
Fixed-wing aircraftRelated: His measured gliding experiments informed later aircraft designers.
AviationRelated: His experiments supplied data and inspiration to later airplane designers.
Hang glidingRelated: His experiments established an early precedent for piloted, unpowered flight.
AeronauticsRelated: His measurements and flight experience informed later aircraft experimentation.
Percy PilcherRelated: Lilienthal’s flights provided a prominent example for Pilcher’s gliding work.