History
Earth-21443 was the home reality of the Avengers whose gratest battle came from Kang and his Biomechanoids. The enemy used the dead corpse of a Celestial to conquer all the time and reality, at that point, Avengers were helped by Thanos and a cosmic powered Black Panther to fight him; eventually, T'Challa, changed the history preventing Kang's first attack. In this way, Earth-21443 turned into another reality where Kang had never attacked: Earth-92147. Black Panther and the Avengers were transported to this new reality automatically.[1]