This feels like a really stupid question but I genuinely don't know. Gliders existed before powered airplanes, right? So people would probably could have made paper airplanes for fun prior to the Wright Brothers, but I have no idea and just had this as a weird shower thought and was curious about it now.
Wait the Wright Brothers definitely invented the airplane before 1964 lmao
There were planes in WW1 and they were relatively new, so I wanna say like, 1910 for their invention?
Edit: I looked it up and Kitty Hawk was in 1903