BIOGRAPHY - page 25
In time, however, even Wakanda suffered under the heel of Hydra. The hypnotic behavioral programmer Doctor Faustus joined with Zenzi to undermine T'Challa's people so that, the next time Baron Zemo and Hydra pressed their way into the Golden City for the Cosmic Cube fragment, little resistance was given. The fragment was turned over to Hydra and Zemo paraded Black Panther before the Hydra Supreme to gloat about his victory. As the heroes escaped from New York, however, war came to Hydra and the Winter Soldier helped free T'Challa from their grasp. Through the power of the Cosmic Cube, the heroic Captain America was restored independently of the Hydra Supreme, and their stranglehold on the world was ended. [Secret Empire #8-10, Captain America: Sam Wilson #25]
One day, Black Panther detected a massive source of energy under South Africa. He found an archeological team burnt to death by cosmic radiation and a hole where something massive and powerful and ancient had recently moved. The empty "tomb" was marked with the symbol of the 
Black Panther among other sigils. Seeing the Eye of Agamotto, T'Challa called in Doctor Strange to help him investigate. Deep under the Earth, they discovered a nest of thousands of giant insect cocoons, some of which were beginning to hatch. These were the Horde, cosmic germs dangerous enough to threaten the Celestials themselves. The two heroes may have been overrun if not for the timely arrival of Jen Walters, the new Hulk, and Robbie Reyes, a rookie Ghost Rider. [Avengers (7th series) #1-3]
Back on the surface, the situation was somehow even more dire. Dead Celestials were literally raining down from space. Captain America, Iron Man, Thor and Captain Marvel were fighting to deal with this threat and the Horde-corrupted Final Host of Celestials that followed them. T'Challa and Carol Danvers retreated to Alpha Flight station to examine one of the Horde insects. They discovered its power signature was infecting not only the Earth, but also the fallen Celestials, rising them as more members of the Final Host. Black Panther and Captain Marvel charged themselves with a counter-signature, allowing them to obliterate the existing Horde on Earth. The other heroes, using the power of the Uni-Mind channeled through Ghost Rider possessing a Celestial, purged the fallen Celestials of the Horde as well. With the now-living Celestials on their side, this newly forged team of Avengers turned back the Final Host and reclaimed the Earth for humanity. [Avengers (7th series) #4-6]
The Horde had been lying dormant on Earth for four billion years, ever since the Alpha Celestial infected with the space germs came to Earth to die. With the Horde purged, the Celestials wanted to raise up the body of their fallen brother, leaving the 2,000-foot tall Alpha Celestial at the North Pole as an unprecedented new base of operations for the reforming Avengers. T'Challa and Tony Stark moved into the Celestial, modifying its passages and ventricles as a functional 
headquarters. A teleportation network in the Alpha Celestial allowed for easy point-to-point travel between the North Pole and Wakanda, New York and other locales. By unanimous vote, Black Panther was nominated as the new chairperson of the Avengers, guiding Earth's Mightiest Heroes in international operations to defend the globe. [Avengers (7th series) #8]
T'Challa brought a new perspective and vision to the role as Avengers leader, formulating them as an international support and response group of incredible power. The Americans were still humbled after the fall of Hydra and the deactivation of S.H.I.E.L.D., and jealously opposed the Avengers leaving the United States and being led by a foreign power. Nevertheless, T'Challa held a global summit of the world's super-powers to share intelligence with the Avengers, inviting the UK, Japan, Israel, China, Saudi Arabia, Canada and others to send their representatives. Russia also sent their representative, but their drunken mutant man-bear Ursa Major was officially there only to spit on T'Challa's efforts.
The Black Panther also knew the Avengers needed their own spy network to gather intelligence in the field. Okoye was the only Dora Milaje who remained loyal to the crown, and she served as a liaison between the royalty of Wakanda and the Midnight Angels of the Jabari lands. T'Challa named her Director of the Agents of Wakanda, a bare-bones but functional replacement for S.H.I.E.L.D., even with their own Vibranium powered Helicarrier. [Avengers (7th series) #9-12]
Okoye and the Dora Milaje also contacted T'Challa for a matter closer to home. Nakia had resurfaced as Malice, having contracted a fatal condition from her own repeated exposure to the Jufeiro spores she used in the past. Wanting to see T'Challa once more before she died, Nakia unleashed a Dora Milaje weapon known as the Mimic-27. The Mimic gained its own sentience and began striking out at innocents, and so Nakia joined with the Black Panther and Dora Milaje to stop her creation. She died in the process, but redeemed herself in the eyes of Wakanda and was buried honorably in Q'Noma Valley. [Avengers: Wakanda Forever #1]
Black Panther led the Avengers through several more dangerous uprisings and conflicts. The Shadow Colonel initiated a civil war for racial purity among the vampire nations, targeting the throne of Dracula. The Avengers were forced to step in to prevent mankind from being wiped out in the crossfire. T'Challa reached out to Blade, vampire hunter, adding him as the newest permanent member of the Avengers during this struggle. [Avengers (7th series) #14-17] Black Panther and the Avengers were also central to the defense of Earth during the War of the Ten Realms. While the Avengers coordinated many strike teams aiding Thor's people the Asgardians against Malekith's hordes, most of the population of Manhattan was evacuated to Avengers Mountain. T'Challa fought to defend the refugees against invaders, turning the power of the fallen Celestial into a weapon of unimaginable power. [War of the Realms crossover]
T'Challa would also privately pursue the research begun by his birth mother, N'Yami, regarding a space program to take Wakanda to the stars and other galaxies. T'Challa realized his mother was not interested in mere exploration -- she was backtracking the path of the original Vibranium meteor that crashed to Earth in order to find the very source of Vibranium. After Klaw's efforts with the Reverbium and the temporary loss of Wakanda's Vibranium stores after Doom and the Desturi, Black Panther felt the weight of ensuring Wakanda alone retained control over Vibranium on Earth. To that end, T'Challa organized a secret exploratory mission for Wakandan scientists to visit the source of Vibranium in the Vega star system pinpointed by his mother's work. To facilitate their travel, the explorers would travel through a wormhole.
Weeks passed, however, with no word from the explorers. T'Challa regretted not taking the risk himself, and worried about the fate of his people both at home and through the wormhole. Despite the cautions and concerns of Shuri and Ororo, the Black Panther decided it was his duty to journey through the wormhole as well and find out what happened to his explorers. At Shuri's insistence, T'Challa tapped Manifold to come with him as support, for his intergalactic-class teleporting abilities would prove useful in returning home once they reached what lay beyond. The first launch had been a secret, but the royal family could not completely cover the absence of the king, so T'Challa and Eden's launch was presented to the public as an exploratory mission, the first of its kind for the Wakandan people. Reported to be a mission that would last a few days, the Black Panther and Manifold launched their starship and traveled to the other side of the wormhole, following their explorer team to the origins of the Vibranium. [Black Panther (7th series) #12, Shuri #1]
What they discovered was the two thousand-year old empire of Wakanda in a distant corner of the universe. The wormhole had displaced the original explorers backwards in time by millennia. Unable to return home, the Wakandan explorers became colonists, occupying the Planet Bast in the Benhazin System, named in honor of the Panther God. The Wakandans found their Vibranium and prospered as a peaceful people for a time. However, this was a harsh corner of space, and 
self-defense alone would not protect them. Over time, the Empire of Wakanda began preventative strikes against their foes, evolving over time into preventative conquest. By the time T'Challa and Manifold arrived, the Intergalactic Empire of Wakanda controlled five galaxies in the Imperium from their Throneworld. The secret of the Orisha's disappearance from Earth was explained: they had sensed a better crop of worshippers.
T'Challa found a warrior named N'Jadaka on the throne, inheritor of Killmonger's birth name and wielder of a Klyntar symbiote. Emperor N'Jadaka fought to suppress word that the legendary Avenger and king of Wakanda Prime had arrived, for fear it would destabilize his rule. The Empire of Wakanda sustained itself on conquest, the theft of lands, people and even ideas. Dissidents and criminals frequently had their memories stolen from them, stored in a massive Archive of information for the Empire. The amnesiac individuals left over after the process became slave miners for the Empire, known as the Nameless. N'Jadaka performed this procedure on the captive T'Challa, reducing him to one of the Nameless. T'Challa retained his pride and regal bearing, but had no memory of his life outside the mines. Despite this, his innate strength and skill combined with his need for freedom made him a frequent troublemaker for the Imperials' Askari enforcers at the mine. [Black Panther (7th series) #1,12,18]
Even after his fall, word of this Nameless slave reached the Maroons, the resistance movement who opposed Emperor N'Jadaka and his Imperials. Captain N'Yami of the Mackandal brought her people to raid the mining colony Goree and find this Nameless who could start uprisings against the Askari alone. Her top soldiers, M'Baku and Nakia, entered the colony to rescue T'Challa. He aided their efforts, not only helping rescue other colonists, but Nakia herself when she was shot during the escape. Captain N'Yami greeted him aboard the Mackandal and (perhaps already 
suspecting his true identity) rechristened this Nameless miner as T'Challa. [Black Panther (7th series) #1] T'Challa spent two years with the Maroons, striking the Wakanda Empire from the outskirts of their territories. He still lacked his memories, but his senses and skills as a warrior continued to draw attention from friend and foe alike. In time, Emperor N'Jadaka became aware of this unusual rebel and realized his efforts to eliminate the true T'Challa had failed. [Black Panther (7th series) #2]
Emboldened by their successes, the Maroons planned to assault the Imperial Archives, recovering the lost memories of all the Nameless stored there. Before their plan could be put into action, though, the Askari located their base in the Zanj region. N'Jadaka unleashed the entire Imperial fleet in an effort to kill T'Challa once and for all. He also sent the Manifold, for Eden Fesi had been held and reprogrammed to serve the Wakandan Empire. The fighting was fierce, and many of the Maroons were cut down trying to escape for the relative safety of the Mackandal. 
Captain N'Yami was among those who died at the hands of the Manifold. When T'Challa faced the Manifold, however, he caught one of the soldier's energy lances and instinctively transfigured it into the Spear of Bashenga. N'Yami's death left Lieutenant M'Baku in command. He ordered a full retreat, and the Maroons were decimated, left in total disarray after this blitzkrieg strike. [Black Panther (7th series) #3-4]