Editing 1972 (section)

=== April ===
{{Main|April 1972}}
*[[April 4]] &ndash; The U.S. formally recognizes [[Bangladesh]].<ref>{{cite news|url=https://www.nytimes.com/1972/04/05/archives/bangladesh-gets-us-recognition-promise-of-help-rogers-announces-the.html|title=Bangladesh Gets U.S. Recognition, Promise of Help|work=The New York Times|date=April 5, 1972}}</ref>
* [[April 10]]
** The U.S. and the Soviet Union join some 70 nations in signing the [[Biological Weapons Convention]], an agreement to ban [[biological warfare]].<ref>{{cite book|author=United States. Congress. Senate. Committee on Foreign Relations|title=Prohibition of Chemical and Biological Weapons: Hearing Before the Committee on Foreign Relations... December 10, 1974|url=https://books.google.com/books?id=_mHQAAAAMAAJ&pg=PA21|year=1974|publisher=U.S. Government Printing Office|page=21}}</ref>
** [[Yinqueshan Han Tombs|Tombs]] containing [[Yinqueshan Han Slips|bamboo slips]], among them [[Sun Tzu]]'s ''[[The Art of War|Art of War]]'' and [[Sun Bin]]'s lost [[Sun Bin's Art of War|military treatise]], are accidentally discovered by construction workers in [[Shandong]].
** The 6.7 {{M|w}} [[1972 Qir earthquake|Qir earthquake]] shakes southern Iran with a maximum Mercalli intensity of IX (Violent), killing 5,374 people in the province of [[Fars province|Fars]].
** The [[44th Academy Awards|44th Annual Academy Awards]] are held at the [[Dorothy Chandler Pavilion]] in Los Angeles.
* [[April 13]] – The [[Universal Postal Union]] decides to recognize the People's Republic of China as the only legitimate Chinese representative, effectively expelling the [[Republic of China]] administering [[Taiwan]].
* [[April 16]]
** [[Apollo 16]] ([[John Young (astronaut)|John Young]], [[Ken Mattingly]], [[Charlie Duke]]) is launched.<ref>{{Cite web |date=2022-04-15 |title=50 Years Ago: Apollo 16 Launches to the Moon - NASA |url=https://www.nasa.gov/history/50-years-ago-apollo-16-launches-to-the-moon/ |access-date=2025-04-05 |language=en-US}}</ref> During the mission, the astronauts, driving the [[Lunar Roving Vehicle]], achieve a [[lunar rover]] speed record of 18&nbsp;km/h.{{Citation needed|reason=other Wikipedia articles say the 18&nbsp;km/h speed was achieved only during the Apollo 17 mission|date=May 2022}}
** [[Vietnam War]]: Nguyen Hue Offensive – Prompted by the [[North Vietnam]]ese offensive, the United States resumes bombing of [[Hanoi]] and [[Haiphong]].
* [[April 26]] – The [[Lockheed L-1011 TriStar]] enters service with [[Eastern Airlines]].
* [[April 27]]
** ''[[Ikiza]]'': [[Burundi]] government forces begin a 4-month genocide against the [[Hutu]] people, killing 100,000–300,000.
** A no-confidence vote against [[Chancellor of Germany (Federal Republic)|German Chancellor]] [[Willy Brandt]] fails under obscure circumstances.
* [[April 29]] – The fourth anniversary of the Broadway musical ''[[Hair (musical)|Hair]]'' is celebrated with a free concert at a Central Park bandshell, followed by dinner at the Four Seasons. There, 13 [[Black Panther Party|Black Panther]] protesters and the show's co-author, [[Jim Rado]], are arrested for disturbing the peace and for using marijuana.