The Roots of Jiu-Jitsu begin with the warrior class, After the Feudal Period in japan ended Jiu-Jitsu was no longer needed on the battle field, A way to practice the art realistically was needed which is why the Late Jigaro Kano (2 Below Pics)
(1860-1938), An educated man and Asian member of the International Olympic comitte and practitioner of jiu-jitsu developed his own version of jiu-jitsu in the late 1800s called Judo.
The Kodak institute of Judo was founded in 1882 by Jigaro Kano, the founder of Judo. Today it is an 8 story building in Tokyo.
Below a very Rare video of Jigaro Kano judo display.