This work proposes a mechanism initiating the Big Bang: the Universe emerged from the collapse of the densest object in a previous-aeon black hole. While the object collapsed into the Big Bang singularity with minimum entropy, the entropy of the host black hole kept increasing. The Second Law of thermodynamics was never violated. The collapse was the reverse of cosmic inflation. Where it occurred, or the Center of the Universe, is found to be currently ~30 billion light years away from us and around Galactic coordinates (l,b)=(279°,-47°). If a Universal Coordinate System is defined accordingly, we are in the Northern Universe at the latitude: W=+35°. Since last scattering, the nearly isotropic and homogeneous Universe is found to have spun clockwise through an angle of 41°±6°, whereas it is calculated to be 49°+7°-11° by a modified Friedmann equation using the early- and late-Universe Hubble constants. The findings are supported by other independent observations.