April 1981 (English Wikipedia)

"Salyut 6". AerospaceGuide.net. Vic Stathopoulos. July 19, 2008. Archived from the original on July 24, 2008. Retrieved April 25, 2022.^{[self-published source]}

archive.today (Global: 14^th place; English: 14^th place)

"3 students camp too near to the brink of death". Milwaukee Journal. April 22, 1981. p. 1. Archived from the original on July 11, 2012.

baseball-reference.com (Global: 213^th place; English: 140^th place)

"Sean Henn Stats". Sports Reference LLC. Retrieved April 25, 2022.

cern.ch (Global: 1,959^th place; English: 1,611^th place)

timeline.web.cern.ch

"00:45:00". Archived from the original on 2013-10-29. Retrieved 2013-11-03.

eurovision.tv (Global: 734^th place; English: 707^th place)

Eurovision 1981 summary

fundaciojoseppla.cat (Global: low place; English: low place)

"1966-1981 Notes de capvesprol – "The 'Evening Sea Breeze' Notes"". Biography. Fundació Josep Pla. Fundació Josep Pla. 2018.

ghostarchive.org (Global: 32^nd place; English: 21^st place)

Horror Stories (September 2, 2015). Stuntman Falls to His Death After Safety Belt Breaks - Jim 'Bullet' Bailey. Archived from the original on 2021-12-21. Retrieved April 18, 2020.

gmu.edu (Global: 3,837^th place; English: 2,524^th place)

chnm.gmu.edu

Notes of April 30, 1981 meeting of CPSU Politubro

grand-national.me.uk (Global: low place; English: low place)

Grand National results

mahalo.com (Global: low place; English: low place)

"Chris Sharma". Mahalo.com Incorporated. Archived from the original on January 8, 2016. Retrieved April 25, 2022.

museumofhoaxes.com (Global: low place; English: low place)

Museum of Hoaxes
"Janet Cooke and Jimmy's World". Museum of Hoaxes. April 17, 2001.

news.google.com (Global: 59^th place; English: 45^th place)

"Psychic 'shocked'". Spokane Daily Chronicle. April 2, 1981. p. 1.
"Stuntman dies in fall from plane". The Bulletin. April 2, 1981. Retrieved April 26, 2022 – via Google News.
"3 students camp too near to the brink of death". Milwaukee Journal. April 22, 1981. p. 1. Archived from the original on July 11, 2012.
"April Massacre in Syria Revealed by Witness, AP article in The Press-Courier (Oxnard, CA), June 25, 1981, p17; Andrew Beattie and Timothy Pepper, The Rough Guide to Syria (Rough Guides, 2001)
"Mercenary suspects played losing hand". Tuscaloosa News. May 17, 1981. p. 8A – via The Dallas Times Herald, Google News.

nytimes.com (Global: 7^th place; English: 7^th place)

nytimes.com

"Wranglers Win W.B.L. Title". The New York Times. April 21, 1981.
Upi (1983-01-05). "AGNEW GIVES $268,482 CHECK TO MARYLAND IN GRAFT LAWSUIT". The New York Times. ISSN 0362-4331. Retrieved 2024-01-06.

select.nytimes.com

"Really Big Trucks". The New York Times. October 23, 1994.

princemichael.org.uk (Global: low place; English: low place)

"Marriage & Family". Prince Michael of Kent. Prince Michael of Kent. 2016. Retrieved April 25, 2022.

tripod.com (Global: 549^th place; English: 491^st place)

acul0.tripod.com

"Acul: Guatemala in Pictures".

umd.edu (Global: 1,747^th place; English: 1,277^th place)

start.umd.edu

"Incident Summary for GTDID: 198104200004".

uncp.edu (Global: low place; English: low place)

Cooke, Janet (September 28, 1980). "Jimmy's World". The Washington Post. p. A1. Archived from the original on December 27, 2008. Retrieved June 30, 2021.

urban75.org (Global: low place; English: low place)

"Brixton Riots 1981: How smouldering tension erupted to set Brixton aflame", www.GuardianCentury.co.uk

washingtonpost.com (Global: 34^th place; English: 27^th place)

Saperstein, Saundra (1981-04-28). "Agnew Told to Pay State $248,735 for Funds He Accepted". Washington Post. ISSN 0190-8286. Retrieved 2024-01-06.

web.archive.org (Global: 1^st place; English: 1^st place)

"00:45:00". Archived from the original on 2013-10-29. Retrieved 2013-11-03.
Cooke, Janet (September 28, 1980). "Jimmy's World". The Washington Post. p. A1. Archived from the original on December 27, 2008. Retrieved June 30, 2021.
"Chris Sharma". Mahalo.com Incorporated. Archived from the original on January 8, 2016. Retrieved April 25, 2022.
"Salyut 6". AerospaceGuide.net. Vic Stathopoulos. July 19, 2008. Archived from the original on July 24, 2008. Retrieved April 25, 2022.^{[self-published source]}

wired.com (Global: 193^rd place; English: 152^nd place)

Long, Tony (April 2007). "April 27, 1981: Say Hello to the First Personal Computer Mouse". Wired.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Saperstein, Saundra (1981-04-28). "Agnew Told to Pay State $248,735 for Funds He Accepted". Washington Post. ISSN 0190-8286. Retrieved 2024-01-06.
Upi (1983-01-05). "AGNEW GIVES $268,482 CHECK TO MARYLAND IN GRAFT LAWSUIT". The New York Times. ISSN 0362-4331. Retrieved 2024-01-06.

youtube.com (Global: 9^th place; English: 13^th place)

Horror Stories (September 2, 2015). Stuntman Falls to His Death After Safety Belt Breaks - Jim 'Bullet' Bailey. Archived from the original on 2021-12-21. Retrieved April 18, 2020.

April 1981 (English Wikipedia)

aerospaceguide.net (Global: low place; English: low place)

archive.today (Global: 14th place; English: 14th place)

baseball-reference.com (Global: 213th place; English: 140th place)

cern.ch (Global: 1,959th place; English: 1,611th place)

timeline.web.cern.ch

eurovision.tv (Global: 734th place; English: 707th place)

fundaciojoseppla.cat (Global: low place; English: low place)

ghostarchive.org (Global: 32nd place; English: 21st place)

gmu.edu (Global: 3,837th place; English: 2,524th place)

chnm.gmu.edu

grand-national.me.uk (Global: low place; English: low place)

mahalo.com (Global: low place; English: low place)

museumofhoaxes.com (Global: low place; English: low place)

news.google.com (Global: 59th place; English: 45th place)

nytimes.com (Global: 7th place; English: 7th place)

nytimes.com

select.nytimes.com

princemichael.org.uk (Global: low place; English: low place)

tripod.com (Global: 549th place; English: 491st place)

acul0.tripod.com

umd.edu (Global: 1,747th place; English: 1,277th place)

start.umd.edu

uncp.edu (Global: low place; English: low place)

urban75.org (Global: low place; English: low place)

washingtonpost.com (Global: 34th place; English: 27th place)

web.archive.org (Global: 1st place; English: 1st place)

wired.com (Global: 193rd place; English: 152nd place)

worldcat.org (Global: 5th place; English: 5th place)

search.worldcat.org

youtube.com (Global: 9th place; English: 13th place)

archive.today (Global: 14^th place; English: 14^th place)

baseball-reference.com (Global: 213^th place; English: 140^th place)

cern.ch (Global: 1,959^th place; English: 1,611^th place)

eurovision.tv (Global: 734^th place; English: 707^th place)

ghostarchive.org (Global: 32^nd place; English: 21^st place)

gmu.edu (Global: 3,837^th place; English: 2,524^th place)

news.google.com (Global: 59^th place; English: 45^th place)

nytimes.com (Global: 7^th place; English: 7^th place)

tripod.com (Global: 549^th place; English: 491^st place)

umd.edu (Global: 1,747^th place; English: 1,277^th place)

washingtonpost.com (Global: 34^th place; English: 27^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

wired.com (Global: 193^rd place; English: 152^nd place)

worldcat.org (Global: 5^th place; English: 5^th place)

youtube.com (Global: 9^th place; English: 13^th place)