The Treatment Action Campaign (TAC) was launched on 10 December 1998, International Human Rights Day. Zackie Achmat, whom The New Yorker calls "the most important dissident in the country since Nelson Mandela",[3] joined with a group of ten other activists to found the group after anti-apartheid gay rights activist Simon Nkoli died from AIDS even as highly active antiretroviral therapy was available to wealthy South Africans.[3] Shortly thereafter, prompted by the murder of HIV-positive activist Gugu Dlamini, HIV-positive and HIV-negative members of the new group began wearing the group's now-famous T-shirts with the words "HIV Positive" printed boldly in front, a strategy inspired by the apocryphal story of the Danish king wearing the yellow star marking Jews under Nazi occupation. Achmat also became famous for his pledge to not take antiretroviral medicines until all South Africans could obtain them.[4]