Question: In what province was the XXI International AIDS Conference of 2016 held in?
Context: The Durban Declaration is a statement signed by over 5,000 physicians and scientists in the year 2000, affirming that HIV is the cause of AIDS.  The declaration was drafted in response to HIV/AIDS denialism, and particularly to address South African president Thabo Mbeki's support for AIDS denialists.  It was written several weeks prior to the 2000 International AIDS Conference, held in Durban, South Africa from July 9–14, 2000, and was published in the medical journal "Nature" to coincide with the Durban conference.  The declaration called the evidence that HIV causes AIDS "clear-cut, exhaustive and unambiguous". Gregg Gonsalves is an HIV/AIDS activist and advocate.  He began working with ACT UP in 1990, going on to found Treatment Action Group.  He found out he was HIV+ in 1995.  He has authored three reports of HIV and written many publications including the 1992 critical review "AIDS research at the NIH" and a report from the International Treatment Preparedness Coalition in 2006.  In 1992 one of his reports resulted in the Clinton Administration reorganising of AIDS research, and he continued to lobby the administration in his role as policy director of the Treatment Action Group in New York.  At the International AIDS Conference, held in Toronto, Gonsalves gave a powerful speech on the 25 years of AIDS.  Gregg Gonsalves has completed studies at Yale University.  In 2008, he received $100,000 as the first recipient of the AIDS Leadership Award "Italic text"The XIII International AIDS Conference was held in Durban, South Africa, during the week of July 9-14 2000.  12,000 people from all over the world attended, including scientists, clinicians, health care workers, public health agencies, people living with HIV/AIDS, AIDS Non-Governmental Organizations, politicians, and the media.  This conference has taken place regularly since its inception in 1985, and now takes place every two years. The X International AIDS Conference, 1994 was held in Yokohama, Japan.  The theme of the conference was "The Global Challenge of AIDS: Together for the future". The XXI International AIDS Conference was held in Durban, South Africa from 18 to 22 July 2016 at the Inkosi Albert Luthuli International Convention Centre. The XIX International AIDS Conference was a conference held in Washington, D.C. from 22 to 27 July 2012 at the Walter E. Washington Convention Center, run by the International AIDS Society. The XVI International AIDS Conference was held in Toronto, Ontario, during the week of 13–18 August 2006.  This was the third time that Canada has hosted the International AIDS Conference, after Montreal in 1989 and Vancouver in 1996.  The main venue for the conference was the Metro Toronto Convention Centre (MTCC) in downtown Toronto. The XX International AIDS Conference was held in Melbourne, Australia from 20 to 25 July 2014 at the Melbourne Convention and Exhibition Centre.  It was organized by the International AIDS Society (IAS).  Over 14,000 scientists, campaigners and politicians were expected to attend. Durban (Zulu: "eThekwini" , from "itheku" meaning "bay/lagoon") is the largest city in the South African province of KwaZulu-Natal.  Durban's metropolitan municipality ranks third among the most populous urban areas in South Africa after Johannesburg and Cape Town.  It is also the second most important manufacturing hub in South Africa after Johannesburg.  It forms part of the eThekwini Metropolitan Municipality.  Durban is famous for being the busiest port in South Africa.  It is also seen as one of the major centres of tourism because of the city's warm subtropical climate and extensive beaches.  The municipality, which includes neighbouring towns, has a population of almost 3.5 million, making the combined municipality one of the biggest cities on the Indian Ocean coast of the African continent.  It is the largest city in KwaZulu-Natal which is the 2nd most populous province in South Africa.  It has the highest number of dollar millionaires added per year of any South African city with the number rising 200 per cent between 2000 and 2014.  In May 2015, Durban was officially recognised as one of the New7Wonders Cities together with Vigan, Doha, La Paz, Havana, Beirut, and Kuala Lumpur. The XV International AIDS Conference was held in Bangkok, the capital city of Thailand, from July 11 to July 16, 2004.  The main venue for the conference was the IMPACT Muang Thong Thani convention centre at Nonthaburi, north-east of downtown Bangkok.  It was the first international AIDS conference to be held in Southeast Asia.  International AIDS conferences have been held regularly since the first one in Atlanta in 1985.
Answer: KwaZulu-Natal