Throughout the park there are many signs of
stone age settlements and iron smelting sites. The area is claimed to have been declared a royal hunting ground for the
Zulu kingdom in the time of
Shaka. Historically,
tsetse flies carrying the
nagana disease protected the area from colonial hunters. Later, as the
Zululand area was settled by white farmers, wildlife in the reserves was blamed for the prevalence of the tsetse fly, and the reserves became experimental areas in the efforts to eradicate the fly. Farmers called for the slaughter of game and over 100,000 animals were killed in the reserves between 1919 and 1950, although the rhino population was spared. The introduction of
DDT spraying in 1945 virtually eliminated the tsetse fly from the reserves, although subsequent outbreaks have occurred. By the 1950s the white rhino population of the reserve had recovered to around 400, and the park's warden,
Ian Player, established Operation Rhino in the 1950s and 60s, with the park's Rhino Capture Unit relocating hundreds of rhinos to establish populations in other reserves across their historic range. In 1989, the corridor between the Hluhluwe and Imfolozi reserves was added in order to join the separate reserves into the current single park. ==Geography and climate==