  The quantum anomalous Hall (QAH) effect - a macroscopic manifestation of
chiral band topology at zero magnetic field - has only been experimentally
realized by magnetic doping of topological insulators (1 - 3) and delicate
design of Moire heterostructures (4 - 8). However, the seemingly simple bilayer
graphene without magnetic doping or Moire engineering has long been predicted
to host competing ordered states with QAH effects (9 - 11). Here, we explore
states in bilayer graphene with conductance of 2 e2/h that not only survive
down to anomalously small magnetic fields and up to temperatures of 5 K, but
also exhibit magnetic hysteresis. Together, the experimental signatures provide
compelling evidence for orbital magnetism driven QAH behavior with a Chern
number tunable via electric and magnetic fields as well as carrier sign. The
observed octet of QAH phases is distinct from previous observations due to its
peculiar ferrimagnetic and ferrielectric order that is characterized by
quantized anomalous charge, spin, valley, and spin-valley Hall behavior.
