Shaka kaSenzangakhona ( – 22 September 1828), also known as Shaka Zulu () and Sigidi kaSenzangakhona, was the king of the Zulu Kingdom from 1816 to 1828. One of the most influential monarchs of the Zulu, he ordered wide-reaching reforms that re-organized the military into a formidable force. King Shaka was born in the lunar month of uNtulikazi (July) in the year of 1787 in Southern Africa near present-day Melmoth, KwaZulu-Natal Province, the son of the Zulu King Senzangakhona kaJama. Spurned as an illegitimate son, Shaka spent his childhood in his mother's settlements, where he was initiated into an ibutho lempi (fighting unit), serving as a warrior under Inkosi Dingiswayo. King Shaka further refined the ibutho military system and, with the Mthethwa Paramountcy's support over the next several years, forged alliances with his smaller neighbours to counter Ndwandwe raids from the north. The initial Zulu maneuvers were primarily defensive, as King Shaka preferred to apply pressure diplomatically, with an occasional strategic assassination. His reforms of local society built on existing structures. Although he preferred social and propagandistic political methods, he also engaged in a number of battles. King Shaka's reign coincided with the start of the ("Upheaval" or "Crushing"), a period of devastating warfare and chaos in southern Africa between 1815 and about 1840 that depopulated the region. His role in the Mfecane/Difaqane is highly controversial. He was ultimately assassinated by his half-brothers King Dingane and Prince Mhlangana. Early life When Senzangakhona (Shaka Zulu's father) died in 1816, Shaka's younger half-brother Sigujana became king to the Zulu chiefdom. Sigujana's reign was short, however, as Dingiswayo, anxious to confirm his authority, lent Shaka a regiment so that he was able to put Sigujana to death, launching a relatively bloodless coup that was substantially accepted by the Zulu. Thus Shaka became Chief of the Zulu clan, although he remained a vassal of the Mthethwa Paramountcy until Dingiswayo's death in battle a year later at the hands of Zwide, powerful chief of the Ndwandwe (Nxumalo) nation. When the Mthethwa forces were defeated and scattered temporarily, the power vacuum was filled by Shaka. He reformed the remnants of the Mthethwa and other regional tribes and later defeated Zwide in the Zulu Civil War of 1819–20. When Dingiswayo was murdered by Zwide, Shaka sought to avenge his death. At some point, Zwide barely escaped Shaka, though the exact details are not known. In that encounter,