Mao Zedong
Mao had been in poor health for several years and had declined visibly for at least six months prior to his death. There are unconfirmed reports that he possibly had ALS or Lou Gehrig's disease. Mao's last public appearance was on 27 May 1976, where he met the visiting Pakistani Prime Minister Zulfikar Ali Bhutto during the latter's one-day visit to Beijing.