What caused the rotation of galaxies, and do they all do it?

What caused the rotation of galaxies, and do they all do it?
The supermassive object was observed just 680 million years after the Big Bang
NASA’s Fermi Gamma-ray Space Telescope has identified the farthest gamma-ray blazars, a type of galaxy whose intense emissions are powered by supersized black holes
A new class of quasar has given a team of astronomers more than they bargained for.