No. Gliders had been long around before the Wrights, Otto Lilienthal, whose work they studied extensively. Lilienthal was among the first (of many) to build gliders that were reliable and flew predictably, time after time.
In aviation, 'firsts' are pretty irrelevant. To do something repeatedly and reliably is a much better proof of concept. The Wright flyer was one of the last glider-inspired designs before the 'modern' layout became the norm.
"To invent an airplane is nothing. To build one is something. But to fly is everything." -Otto Lilienthal
more info here: http://Hawaii.psychology.msstate.edu/LilienthalMuseum/Lilmuseum.html
The Wright brothers rode their first glider off a hill. I assume you actually meant their wright flyer. For that, they used a twelve horse-power engine of their own making.
Who flew the first Wright Flyer
they invented the first airplane then they flew in it
The first glider was invented in 1891.
The wright brothers worked as bike makers and sellers at the wright cycle bike company. While they made bikes they also at the same time gained skills that helped them in making the first working plane. Also they watched birds fly in the sky so they also got ideas off of that. They watched how the birds flew and turned. So birds inspired the wright brothers.
Wilbur Wright
In 1900, the Wright brothers built the first glider. Most of their tests of the glider did not contain a pilot in the first year, and they continued to develop it for several years.
Wright brothers
The Wright brothers first flew their 1900 glider at Kitty Hawk.
The Wright Brothers.
1909
Kitty Hawk But it was not a glider. It was a powered aircraft.
In 1901 in their glider.
The Wright brothers built the first glider in the world that could be piloted
The Wright brothers first airplane was a glider, -wind powered.
The Wright brothers rode their first glider off a hill. I assume you actually meant their wright flyer. For that, they used a twelve horse-power engine of their own making.
The Wright brothers built and flew gliders before their first successful powered flight.