Actually, BJJ is a modified form of jiu-jitsu.
it was developed and adapted by Helio Gracie Sr. who designed it's overall fighting approach and main techniques, and spread this approach.
Nobody owns jiu-jitsu.
All the principles of leverage, locks, strikes, etc belongs to jiu-jitsu, the genesis of all fighting styles. What happens is that some people are more confortable or want to concentrate in some techniques, because these techniques are more suitable in certain situations, so they call it "my style" jiu-jitsu, just like ford calls an automobile a Ford one, ferrari calls it a ferrari one, and so, but in essence, an automobile is an automobile.
