Editing 1993 (section)

===April===
* April–May – [[1993 Four Corners hantavirus outbreak]]: Thirteen people are killed by [[Hantavirus pulmonary syndrome]], mainly in the [[Southwestern United States]].
* April–October – [[Great Flood of 1993]]: The [[Mississippi River|Mississippi]] and [[Missouri River]]s flood large portions of the American Midwest.
* [[April 8]] – The [[Republic of Macedonia]] is admitted to the [[United Nations]] under a provisional reference "the former Yugoslav Republic of Macedonia".
* [[April 11]] – Four hundred fifty prisoners [[riot|rioted]] at the [[Southern Ohio Correctional Facility]] in [[Lucasville, Ohio]], and continued to do so for ten days, citing grievances related to prison conditions, as well as the forced vaccination of [[Nation of Islam]] prisoners (for [[tuberculosis]]) against their religious beliefs.
* [[April 16]] – [[Bosnian War]]: the enclave of [[Srebrenica]] is declared a UN-protected "safe area". Also members of the Jokeri unit of the [[Croatian Defence Council|HVO]] entered the village of [[Ahmići massacre|Ahmići]] and killed 120 muslim residents.
* [[April 19]] – [[Waco siege]]: A 51-day stand-off at the Branch Davidian compound near [[Waco, Texas]], ends with a fire that kills 76 people, including [[David Koresh]].
* [[April 20]] – The [[Council for National Academic Awards]], the national degree-awarding authority in the United Kingdom, is officially dissolved.
** [[Backstreet Boys]] were formed in [[Orlando, Florida|Orlando]], [[Florida]].
* [[April 21]] – The Supreme Court in [[La Paz]], [[Bolivia]], sentences former dictator [[Luis Garcia Meza]] to 30 years in jail without parole for murder, theft, fraud and violating the constitution.
* [[April 23]]
** The [[World Health Organization]] declares [[tuberculosis]] a global emergency.<ref>{{Cite news |title=Rise in TB declared a global emergency |url=https://www.independent.co.uk/news/uk/rise-in-tb-declared-a-global-emergency-1456999.html |archive-url=http://web.archive.org/web/20221129084150/https://www.independent.co.uk/news/uk/rise-in-tb-declared-a-global-emergency-1456999.html |archive-date=2022-11-29 |access-date=2025-02-20 |work=The Independent |language=en-GB}}</ref>
** [[Eritrea]]ns vote overwhelmingly for independence from [[Ethiopia]] in a [[United Nations]]-monitored referendum, the [[1993 Eritrean independence referendum]].
* [[April 26]] – [[Oscar Luigi Scalfaro]] appoints [[Carlo Azeglio Ciampi]] [[Prime Minister of Italy]].
* [[April 27]]
** [[Eritrea]]: Eritrean independence is declared verified by the [[United Nations]].
** [[1993 Yemeni parliamentary election]]: The [[General People's Congress (Yemen)|General People's Congress of Yemen]] wins a [[Plurality (voting)|plurality]] of 121 seats.
** [[1993 Zambia national football team plane crash]]: All members of the [[Zambia national football team]] die in a [[plane crash]] off Libreville, Gabon en route to [[Dakar]], [[Senegal]].
* [[April 30]] – Tennis player [[Monica Seles]] – at this time the top-ranked player in women's tennis – is stabbed during a match at the [[1993 Citizen Cup]] in [[Hamburg]], [[Germany]].