A lot of the examples on the mental_floss page refer to devices that took off from a ramp or hill of some sort, which is why they are disqualified as "flight." Basically, like gliders.

Also, in response to some of the potential other flights people have listed, I think the Wright Brothers were very lucky to have a small crowd watching them, as well as a photographer.

As a Daytonian I felt the need to share all this. =)