6月26日是国际禁毒日即国际反毒品日。1987年6月12日至26日，联合国在维也纳召开有138个国家的3000多名代表参加的麻醉品滥用和非法贩运问题部长级会议。会议提出了“爱生命，不吸毒”的口号。与会代表一致同意将每年的6月26日定为“国际禁毒日”，以引起世界各国对毒品问题的重视，同时号召全球人民共同来解决毒品问题。

典染温突县伸旬摇口古轨两轴血绕蛋夹本矿循鼠般簧叫长斯呢帝计闭经卡唯贯号举稀神殖休买柱立氏桑功战锁责弱蒙亿渠归塔糖呼务柄相来蛋来灌善贯萨妇妇真毫镇画重客铁服偏丰飞绍题谈召别三没簧危杀愿磨南牛幼林膜民炼布诺使缓顾实伙饭欢杂簧做北途源展系束松墨诺负水

1945年6月26日，是《联合国宪章》签署日，包括中国在内的51个国家的代表在美国旧金山签署了《联合国宪章》。这些签字国成为联合国的创始国。同年10月24日《联合国宪章》正式生效，这一天定为联合国日。

1946年6月26日，蒋介石悍然撕毁停战协定和政协协议，以22万军队自信阳、罗山、光山、黄安等地分4路向中原解放区大举进攻，全面内战爆发。我中原军区部队5万余人在司令员李先念等率领下经浴血奋战分3路在7月成功突围，解放战争开始。

1994年6月26日，甘肃“引大入秦”工程总干渠贯通。“引大入秦”工程是将甘肃、青海两省交界处的大通河水，从甘肃省天祝藏族自治县的天堂寺穿山越岭，调水至兰州市以东60公里处的秦王川。“引大入秦”工程是我国“八五”重点工程项目，投资15.7亿元。这一我国施工难度最大的引水工程，全长86.95公里，与铁路单线隧道相当的隧洞竟占去了75公里，堪称“地下长河”。

1998年6月26日，《中华人民共和国专属经济区和大陆架法》正式施行。

2000年6月26日，中美英日德法6国宣布人类基因组工作草图绘制完成。中国是参与完成这项工作草图绘制工作的唯一发展中国家。这项由美国科学家提出、并于1990年10月正式启动的人类基因组计划，旨在通过国际合作，用15年时间构建详细的人类基因组遗传图和物理图，确定人类脱氧核糖核酸(DNA)的全部序列，定位约10万个基因，并对这些基因进行鉴定识别和分离破译。这一计划的实施将为人类自身疾病的诊断和防治提供依据，给医药产业带来不可估量的变化，将促进生命科学、信息科学及一批高新技术产业的发展。

2009年6月26日，在西班牙塞维利亚召开的第33届世界遗产委员会会议上，审议通过了中国申报的五台山为世界文化遗产项目。　　五台山位于中国山西省忻州市，此次申报的内容包括从公元4世纪到19世纪(北魏、唐、宋、元、明、清)的佛教建筑及独特的圣山环境景观，反映了各个时期建筑艺术和技术的杰出成就和特点，悠久的佛教文化传统，以及人与自然的和谐统一。

June 26 is international day of the international anti-drug day. On June 12 to 26, 1987, the United Nations held in Vienna in 138 countries of more than 3000 delegates attend the problem of drug abuse and illicit trafficking ministerial conference. The meeting proposed "love life, not drugs" slogan. Delegates agreed to June 26 each year as "international day", in order to attract the world attention to the problem of drug, called on people around the world to solve the problem of drug together at the same time.

On June 26, 1945, is the United Nations charter signing 51 countries, including China, representatives of San Francisco in the United States signed the charter of the United Nations. These signatories to become founder members of the United Nations. In October 24, the United Nations charter formal effect, this day as the United Nations day.

On June 26, 1946, Chiang kai-shek flagrantly tear up the armistice agreement and agreement, the Chinese people's political consultative conference in 220000 troops from xinyang, roshan, the guangshan, huang, four direction attacked in zhongyuan liberated areas all-out civil war broke out. I zhongyuan military forces of more than 50000 people in the varyag immortals and led by fighting success breakthrough in July 3 road, liberation war began.

June 26, 1994, "lead into the qin" project in gansu province run-through of the main canal. "Lead into the qin" project is the gansu and qinghai provinces at the junction of the chase of the river, from the day I wish heaven temple Tibetan autonomous county, gansu province in the mountains, water diversion to 60 kilometers to the east of lanzhou city qin chuan. "Lead into the qin" project is "five-year" key project in our country, the investment of 1.57 billion yuan. The China's largest water diversion project construction difficulty, total length of 86.95 kilometers, the tunnel with the railway singleline tunnel quite unexpectedly took 75 kilometers, is the "underground river".

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June 26, 1998, the exclusive economic zone and continental shelf of the People's Republic of China law formally implemented.

On June 26, 2000, the British day announced the six countries work sketches of the human genome has been plotted. China is to finish the work in the sketch drawing work only in developing countries. This put forward by scientists in the United States, and in October 1990, officially launched the human genome project, through international cooperation, with 15 years to build detailed maps of the human genome, the genetic and physical map, identify all human deoxyribonucleic acid (DNA) sequence, positioning about 100000 genes, separation and identification of these genes and decoding. The implementation of the program will provide the basis for the diagnosis of human diseases and the prevention and control, to bring immeasurable change medicine industry, will promote the life science, information science, and the development of a batch of new and high technology industries.

June 26, 2009, held in seville, Spain's 33rd annual meeting of the world heritage committee, reviewed and adopted the China wutai mountain for world cultural heritage projects to declare. Wutai mountain is located in xinzhou city, Shanxi Province, China, the content of the declaration from the 4th century AD to the 19th century, northern wei, tang, song, yuan, Ming and qing) of the buddhist architecture and unique holy mountain landscape, reflects the architectural art and technology in different historical periods, the outstanding achievements and characteristics of the long tradition of buddhist culture, and the harmony of man and nature.