“９９’北京国际古人类学学术研讨会暨纪念北京猿人第一个头盖骨发现７０周年大会”于１９９９年１０月１２日至１６日在北京举行。来自美国、加拿大、英国、德国、法国、意大利、比利时、西班牙、瑞士、奥地利、捷克、挪威、斯洛文尼亚、南非、巴西、日本、韩国、以色列、印 "99 ’Beijing International Seminar on Ancient Anthropology and the 70th Anniversary of the First Skull Discovery in Peking Man’ was held in Beijing from October 12 to October 16, 1999. From the United States, Canada, Britain, Germany, France, Italy, Belgium, Spain, Switzerland, Austria, Czech Republic, Norway, Slovenia, South Africa, Brazil, Japan, South Korea, Israel, India