- 598 – Balkan Campaign: The Avars lift the siege at the Byzantine stronghold of Tomis. Their leader Bayan I retreats north of the Danube River after the Avaro-Slavic hordes are decimated by the plague.
- 1282 – The people of Sicily rebel against the Angevin king Charles I, in what becomes known as the Sicilian Vespers.
- 1296 – Edward I sacks Berwick-upon-Tweed, during armed conflict between Scotland and England.
- 1699 – Guru Gobind Singh establishes the Khalsa in Anandpur Sahib, Punjab.
- 1815 – Joachim Murat issues the Rimini Proclamation which would later inspire Italian unification.
- 1818 – Physicist Augustin Fresnel reads a memoir on optical rotation to the French Academy of Sciences, reporting that when polarized light is “depolarized” by a Fresnel rhomb, its properties are preserved in any subsequent passage through an optically-rotating crystal or liquid.
- 1822 – The Florida Territory is created in the United States.
- 1841 – The National Bank of Greece is founded in Athens.
- 1842 – Ether anesthesia is used for the first time, in an operation by the American surgeon Dr. Crawford Long.
- 1844 – One of the most important battles of the Dominican War of Independence from Haiti takes place near the city of Santiago de los Caballeros.
- 1855 – Origins of the American Civil War: “Border Ruffians” from Missouri invade Kansas and force election of a pro-slavery legislature.
- 1856 – The Treaty of Paris is signed, ending the Crimean War.
- 1861 – Discovery of the chemical elements: Sir William Crookes announces his discovery of thallium.
- 1863 – Danish prince Wilhelm Georg is chosen as King George of Greece.
- 1867 – Alaska is purchased from Russia for $7.2 million, about 2-cent/acre ($4.19/km²), by United States Secretary of State William H. Seward.
- 1870 – Texas is readmitted to the United States Congress following Reconstruction.
- 1885 – The Battle for Kushka triggers the Panjdeh Incident which nearly gives rise to war between the Russian and British Empire.
- 1899 – German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
- 1912 – Sultan Abd al-Hafid signs the Treaty of Fez, making Morocco a French protectorate.
- 1918 – Outburst of bloody March Events in Baku and other locations of Baku Governorate.
- 1939 – The Heinkel He 100 fighter sets a world airspeed record of 463 mph (745 km/h).
- 1940 – Second Sino-Japanese War: Japan declares Nanking capital of a new Chinese puppet government, nominally controlled by Wang Jingwei.
- 1944 – World War II: Allied bombers conduct their most severe bombing run on Sofia, Bulgaria.
- 1944 – Out of 795 Lancasters, Halifaxes and Mosquitos sent to attack Nuremberg, 95 bombers do not return, making it the largest RAF Bomber Command loss of the war.
- 1945 – World War II: Soviet forces invade Austria and capture Vienna; Polish and Soviet forces liberate Danzig.
- 1949 – Cold War: A riot breaks out in Austurvöllur square in Reykjavík, when Iceland joins NATO.
- 1959 – Tenzin Gyatso, the 14th Dalai Lama, flees Tibet for India.
- 1961 – The Single Convention on Narcotic Drugs is signed in New York City.
- 1965 – Vietnam War: A car bomb explodes in front of the United States Embassy, Saigon, killing 22 and wounding 183 others.
- 1972 – Vietnam War: The Easter Offensive begins after North Vietnamese forces cross into the Demilitarized Zone (DMZ) of South Vietnam.
- 1976 – Israeli-Palestinian conflict: in the first organized response against Israeli policies by a Palestinian collective since 1948, Palestinians create the first Land Day.
- 1979 – Airey Neave, a British Member of Parliament, is killed by a car bomb as he exits the Palace of Westminster. The Irish National Liberation Army claims responsibility.
- 1981 – U.S. President Ronald Reagan is shot in the chest outside a Washington, D.C., hotel by John Hinckley, Jr.; three others are wounded in the same incident.
- 1982 – Space Shuttle program: STS-3 mission is completed with the landing of Columbia at White Sands Missile Range, New Mexico.
- 2002 – 2002 Lyon car attack takes place.
- 2009 – Twelve gunmen attack the Manawan Police Academy in Lahore, Pakistan.
- 2017 – SpaceX conducts the world’s first reflight of an orbital class rocket.
Births on March 30
- 892 – Shi Jingtang, founder of the Later Jin Dynasty (d. 942)
- 1135 – Maimonides, Spanish rabbi and philosopher (April 6 also proposed, d. 1204)
- 1326 – Ivan II of Moscow (d. 1359)
- 1432 – Mehmed the Conqueror, Ottoman sultan (d. 1481)
- 1510 – Antonio de Cabezón, Spanish composer and organist (d. 1566)
- 1551 – Salomon Schweigger, German theologian (d. 1622)
- 1606 – Vincentio Reinieri, Italian mathematician and astronomer (d. 1647)
- 1632 – John Proctor, farmer hanged for witchcraft in the Salem witch trials (d. 1692)
- 1640 – John Trenchard, English politician, Secretary of State for the Northern Department (d. 1695)
- 1727 – Tommaso Traetta, Italian composer and educator (d. 1779)
- 1746 – Francisco Goya, Spanish-French painter and sculptor (d. 1828)
- 1750 – John Stafford Smith, English organist and composer (d. 1836)
- 1793 – Juan Manuel de Rosas, Argentinian soldier and politician, 13th Governor of Buenos Aires Province (d. 1877)
- 1805 – Ferdinand Johann Wiedemann, German-Swedish linguist and botanist (d. 1887)
- 1811 – Robert Bunsen, German chemist and academic (d. 1899)
- 1820 – Anna Sewell, English author (d. 1878)
- 1820 – James Whyte, Scottish-Australian politician, 6th Premier of Tasmania (d. 1882)
- 1844 – Paul Verlaine, French poet (d. 1896)
- 1853 – Vincent van Gogh, Dutch-French painter and illustrator (d. 1890)
- 1853 – Arnoldo Sartorio, German composer, pianist, and teacher (d. 1936)
- 1857 – Léon Charles Thévenin, French engineer (d. 1926)
- 1858 – Siegfried Alkan, German composer (d. 1941)
- 1863 – Mary Calkins, American philosopher and psychologist (d. 1930)
- 1864 – Franz Oppenheimer, German-American sociologist and economist (d. 1943)
- 1874 – Charles Lightoller, English 2nd officer on the RMS Titanic (d. 1952)
- 1874 – Josiah McCracken, American hammer thrower, shot putter, and football player (d. 1962)
- 1874 – Nicolae Rădescu, Romanian general and politician, Prime Minister of Romania (d. 1953)
- 1875 – Thomas Xenakis, Greek-American gymnast (d. 1942)
- 1879 – Coen de Koning, Dutch speed skater (d. 1954)
- 1880 – Seán O’Casey, Irish dramatist, playwright, and memoirist (d. 1964)
- 1882 – Melanie Klein, Jewish Austrian-English psychologist and author (d. 1960)
- 1888 – J. R. Williams, Canadian-born cartoonist (d. 1957)
- 1891 – Chunseong, Korean monk, writer and philosopher (d. 1977)
- 1892 – Stefan Banach, Polish mathematician and academic (d. 1945)
- 1892 – Fortunato Depero, Italian painter and sculptor (d. 1960)
- 1892 – Erhard Milch, German field marshal (d. 1972)
- 1892 – Johannes Pääsuke, Estonian photographer and director (d. 1918)
- 1892 – Erwin Panofsky, German historian and academic (d. 1968)
- 1894 – Tommy Green, English race walker (d. 1975)
- 1894 – Sergey Ilyushin, Russian engineer, founded Ilyushin Aircraft Company (d. 1977)
- 1895 – Jean Giono, French author and poet (d. 1970)
- 1895 – Carl Lutz, Swiss vice-consul to Hungary during WWII, credited with saving over 62,000 Jews (d. 1975)
- 1895 – Charlie Wilson, English footballer (d. 1971)
- 1899 – Sharadindu Bandyopadhyay, Indian author, playwright, and screenwriter (d. 1970)
- 1902 – Brooke Astor, American socialite and philanthropist (d. 2007)
- 1902 – Ted Heath, English trombonist and composer (d. 1969)
- 1903 – Joy Ridderhof, American missionary (d. 1984)
- 1904 – Ripper Collins, American baseball player and coach (d. 1970)
- 1905 – Archie Birkin, English motorcycle racer (d. 1927)
- 1905 – Mikio Oda, Japanese triple jumper and academic (d. 1998)
- 1905 – Albert Pierrepoint, English hangman (d. 1992)
- 1907 – Friedrich August Freiherr von der Heydte, German general (d. 1994)
- 1910 – Józef Marcinkiewicz, Polish soldier, mathematician, and academic (d. 1940)
- 1911 – Ekrem Akurgal, Turkish archaeologist and academic (d. 2002)
- 1912 – Jack Cowie, New Zealand cricketer (d. 1994)
- 1912 – Alvin Hamilton, Canadian lieutenant and politician, 18th Canadian Minister of Agriculture (d. 2004)
- 1913 – Marc Davis, American animator (d. 2000)
- 1913 – Richard Helms, American soldier and diplomat, 8th Director of Central Intelligence (d. 2002)
- 1913 – Frankie Laine, American singer-songwriter (d. 2007)
- 1913 – Ċensu Tabone, Maltese general, physician, and politician, 4th President of Malta (d. 2012)
- 1914 – Sonny Boy Williamson I, American singer-songwriter and harmonica player (d. 1948)
- 1915 – Pietro Ingrao, Italian journalist and politician (d. 2015)
- 1917 – Els Aarne, Ukrainian-Estonian pianist, composer, and educator (d. 1995)
- 1919 – McGeorge Bundy, American intelligence officer and diplomat, 6th United States National Security Advisor (d. 1996)
- 1919 – Robin M. Williams, New Zealand mathematician and academic (d. 2013)
- 1921 – André Fontaine, French historian and journalist (d. 2013)
- 1922 – Turhan Bey, American actor (d. 2012)
- 1922 – Arthur Wightman, American physicist and academic (d. 2013)
- 1923 – Milton Acorn, Canadian poet and playwright (d. 1986)
- 1926 – Ingvar Kamprad, Swedish businessman, founded IKEA (d. 2018)
- 1927 – Wally Grout, Australian cricketer (d. 1968)
- 1928 – Robert Badinter, French lawyer and politician, French Minister of Justice
- 1928 – Colin Egar, Australian cricket umpire (d. 2008)
- 1928 – Tom Sharpe, English-Spanish author and educator (d. 2013)
- 1929 – Richard Dysart, American actor (d. 2015)
- 1929 – Ray Musto, American soldier and politician (d. 2014)
- 1929 – István Rózsavölgyi, Hungarian runner (d. 2012)
- 1930 – John Astin, American actor
- 1930 – Rolf Harris, Australian singer-songwriter
- 1933 – Jean-Claude Brialy, French actor and director (d. 2007)
- 1934 – Paul Crouch, American broadcaster, co-founded the Trinity Broadcasting Network (d. 2013)
- 1934 – Hans Hollein, Austrian architect and academic, designed Haas House (d. 2014)
- 1935 – Karl Berger, German pianist and composer
- 1935 – Willie Galimore, American football player (d. 1964)
- 1935 – Gordon Mumma, American composer
- 1937 – Warren Beatty, American actor, director, producer, and screenwriter
- 1937 – Ian MacLaurin, Baron MacLaurin of Knebworth, English businessman
- 1938 – John Barnhill, American basketball player and coach (d. 2013)
- 1938 – Klaus Schwab, German economist and engineer, founded the World Economic Forum
- 1940 – Norman Gifford, English cricketer
- 1940 – Jerry Lucas, American basketball player and educator
- 1940 – Hans Ragnemalm, Swedish lawyer and judge (d. 2016)
- 1941 – Graeme Edge, English singer-songwriter and drummer
- 1941 – Ron Johnston, English geographer and academic
- 1941 – Wasim Sajjad, Pakistani lawyer and politician, President of Pakistan
- 1941 – Bob Smith, American soldier and politician
- 1942 – Ruben Kun, Nauruan lawyer and politician, 14th President of Nauru (d. 2014)
- 1942 – Tane Norton, New Zealand rugby player
- 1942 – Kenneth Welsh, Canadian actor
- 1943 – Jay Traynor, American pop and doo-wop singer (d. 2014)
- 1944 – Mark Wylea Erwin, American businessman and diplomat
- 1944 – Brian Wilshire, Australian radio host
- 1945 – Eric Clapton, English guitarist and singer-songwriter
- 1947 – Dick Roche, Irish politician, Minister of State for European Affairs
- 1947 – Terje Venaas, Norwegian bassist
- 1948 – Nigel Jones, Baron Jones of Cheltenham, English computer programmer and politician
- 1948 – Eddie Jordan, Irish racing driver and team owner, founded Jordan Grand Prix
- 1948 – Mervyn King, English economist and academic
- 1948 – Jim “Dandy” Mangrum, American rock singer
- 1949 – Liza Frulla, Canadian talk show host and politician, 3rd Minister of Canadian Heritage
- 1949 – Dana Gillespie, English singer-songwriter and actress
- 1949 – Naomi Sims, American model and author (d. 2009)
- 1950 – Janet Browne, English-American historian and academic
- 1950 – Robbie Coltrane, Scottish actor
- 1950 – Grady Little, American baseball player, coach, and manager
- 1950 – Warren Snowdon, Australian educator and politician, 39th Australian Minister for Veterans’ Affairs
- 1951 – Paul Da Vinci, English singer-songwriter
- 1952 – Stuart Dryburgh, English-New Zealand cinematographer
- 1952 – Peter Knights, Australian footballer and coach
- 1955 – Randy VanWarmer, American singer-songwriter and guitarist (d. 2004)
- 1956 – Bill Butler, Scottish educator and politician
- 1956 – Juanito Oiarzabal, Spanish mountaineer
- 1956 – Shahla Sherkat, Iranian journalist and author
- 1957 – Marie-Christine Koundja, Chadian author and diplomat
- 1957 – Paul Reiser, American actor and comedian
- 1958 – Maurice LaMarche, Canadian voice actor and stand-up comedian
- 1958 – Joey Sindelar, American golfer
- 1959 – Martina Cole, English television host and author
- 1960 – Laurie Graham, Canadian skier
- 1960 – Bill Johnson, American skier (d. 2016)
- 1961 – Mike Thackwell, New Zealand racing driver
- 1961 – Doug Wickenheiser, Canadian-American ice hockey player (d. 1999)
- 1962 – Mark Begich, American politician
- 1962 – MC Hammer, American rapper and actor
- 1962 – Gary Stevens, English international footballer, defender and manager
- 1963 – Tsakhiagiin Elbegdorj, Mongolian journalist and politician, 4th President of Mongolia
- 1963 – Eli-Eri Moura, Brazilian composer and conductor
- 1963 – Panagiotis Tsalouchidis, Greek footballer
- 1964 – Vlado Bozinovski, Macedonian-Australian footballer and manager
- 1964 – Tracy Chapman, American singer-songwriter and guitarist
- 1965 – Piers Morgan, English journalist and talk show host
- 1966 – Efstratios Grivas, Greek chess player and author
- 1966 – Dmitry Volkov, Russian swimmer
- 1966 – Leonid Voloshin, Russian triple jumper
- 1967 – Christopher Bowman, American figure skater and coach (d. 2008)
- 1967 – Richard Hutten, Dutch furniture designer
- 1967 – Julie Richardson, New Zealand tennis player
- 1968 – Celine Dion, Canadian singer-songwriter
- 1969 – Troy Bayliss, Australian motorcycle racer
- 1970 – Tobias Hill, English poet and author
- 1970 – Sylvain Charlebois, Canadian food/agriculture researcher and author
- 1971 – Mari Holden, American cyclist
- 1971 – Mark Consuelos, American actor and television personality
- 1972 – Mili Avital, Israeli-American actress
- 1972 – Emerson Thome, Brazilian footballer and scout
- 1972 – Karel Poborský, Czech footballer
- 1973 – Adam Goldstein, American keyboard player, DJ, and producer (d. 2009)
- 1973 – Jan Koller, Czech footballer
- 1973 – Kareem Streete-Thompson, Caymanian-American long jumper
- 1974 – Martin Love, Australian cricketer
- 1975 – Paul Griffen, New Zealand-Italian rugby player
- 1976 – Ty Conklin, American ice hockey player
- 1976 – Obadele Thompson, Barbadian sprinter
- 1976 – Troels Lund Poulsen, Danish politician, Minister for Education of Denmark
- 1977 – Abhishek Chaubey, Indian director and screenwriter
- 1978 – Paweł Czapiewski, Polish runner
- 1978 – Chris Paterson, Scottish rugby player and coach
- 1978 – Bok van Blerk, South African singer-songwriter and actor
- 1979 – Norah Jones, American singer-songwriter and pianist
- 1979 – Anatoliy Tymoshchuk, Ukrainian footballer
- 1980 – Ricardo Osorio, Mexican footballer
- 1981 – Jammal Brown, American football player
- 1981 – Andrea Masi, Italian rugby player
- 1982 – Mark Hudson, English footballer
- 1982 – Philippe Mexès, French footballer
- 1982 – Javier Portillo, Spanish footballer
- 1982 – Jason Dohring, American actor
- 1983 – Jérémie Aliadière, French footballer
- 1984 – Mario Ančić, Croatian tennis player
- 1984 – Samantha Stosur, Australian tennis player
- 1985 – Giacomo Ricci, Italian racing driver
- 1986 – Sergio Ramos, Spanish footballer
- 1987 – Trent Barreta, American wrestler
- 1987 – Calum Elliot, Scottish footballer
- 1987 – Kwok Kin Pong, Hong Kong footballer
- 1987 – Marc-Édouard Vlasic, Canadian ice hockey player
- 1988 – Will Matthews, Australian rugby league player
- 1988 – Thanasis Papazoglou, Greek footballer
- 1988 – Richard Sherman, American football player
- 1988 – Larisa Yurkiw, Canadian alpine skier
- 1989 – Chris Sale, American baseball player
- 1989 – João Sousa, Portuguese tennis player
- 1990 – Thomas Rhett, American country music singer and songwriter
- 1990 – Michal Březina, Czech figure skater
- 1992 – Palak Muchhal, Indian playback singer
- 1993 – Anitta, Brazilian singer and entertainer
- 1994 – Jetro Willems, Dutch footballer
- 1997 – Cha Eun-woo, South Korean singer and actor, A member of the South Korean boy band, Astro
- 1998 – Kalyn Ponga, Australian rugby league player
- 2000 – Colton Herta, American race car driver
Deaths on March 30
- 116 – Quirinus of Neuss, Roman martyr and saint
- 365 – Ai of Jin, emperor of the Jin Dynasty (b. 341)
- 943 – Li Bian, emperor of Southern Tang (b. 889)
- 987 – Arnulf II, Count of Flanders (b. 960)
- 1180 – Al-Mustadi, Caliph (b. 1142)
- 1202 – Joachim of Fiore, Italian mystic and theologian (b. 1135)
- 1465 – Isabella of Clermont, queen consort of Naples (b. c. 1424)
- 1472 – Amadeus IX, Duke of Savoy (b. 1435)
- 1486 – Thomas Bourchier, English cardinal (b. 1404)
- 1526 – Konrad Mutian, German humanist (b. 1471)
- 1540 – Matthäus Lang von Wellenburg, German cardinal (b. 1469)
- 1559 – Adam Ries, German mathematician and academic (b. 1492)
- 1587 – Ralph Sadler, English politician, Secretary of State for England (b. 1507)
- 1662 – François le Métel de Boisrobert, French poet and playwright (b. 1592)
- 1689 – Kazimierz Łyszczyński, Polish atheist and philosopher (b. 1634)
- 1707 – Sébastien Le Prestre de Vauban, French general and engineer (b. 1633)
- 1764 – Pietro Locatelli, Italian violinist and composer (b. 1695)
- 1783 – William Hunter, Scottish anatomist and physician (b. 1718)
- 1804 – Victor-François, 2nd duc de Broglie, French general and politician, French Secretary of State for War (b. 1718)
- 1806 – Georgiana Cavendish, Duchess of Devonshire (b. 1757)
- 1830 – Louis I, Grand Duke of Baden (b. 1763)
- 1840 – Beau Brummell, English-French fashion designer (b. 1778)
- 1842 – Louise Élisabeth Vigée Le Brun, French painter (b. 1755)
- 1864 – Louis Schindelmeisser, German clarinet player, composer, and conductor (b. 1811)
- 1873 – Bénédict Morel, Austrian-French psychiatrist and physician (b. 1809)
- 1879 – Thomas Couture, French painter and educator (b. 1815)
- 1886 – Joseph-Alfred Mousseau, Canadian judge and politician, 6th Premier of Quebec (b. 1838)
- 1896 – Charilaos Trikoupis, Greek politician, 55th Prime Minister of Greece (b. 1832)
- 1912 – Karl May, German author (b. 1842)
- 1925 – Rudolf Steiner, Austrian philosopher and author (b. 1861)
- 1935 – Romanos Melikian, Armenian composer (b. 1883)
- 1936 – Conchita Supervía, Spanish soprano and actress (b. 1895)
- 1940 – Sir John Gilmour, 2nd Baronet Scottish soldier and politician, Secretary of State for Scotland (b. 1876)
- 1943 – Jan Bytnar, Polish lieutenant; WWII resistance fighter (b. 1921)
- 1943 – Maciej Aleksy Dawidowski, Polish sergeant; WWII resistance fighter (b. 1920)
- 1945 – Béla Balogh, Hungarian actor, director, and screenwriter (b. 1885)
- 1949 – Friedrich Bergius, German chemist and academic, Nobel Prize laureate (b. 1884)
- 1949 – Dattaram Hindlekar, Indian cricketer (b. 1909)
- 1950 – Léon Blum, French lawyer and politician, Prime Minister of France (b. 1872)
- 1952 – Jigme Wangchuck, Bhutanese king (b. 1905)
- 1955 – Harl McDonald, American pianist, composer, and conductor (b. 1899)
- 1956 – Edmund Clerihew Bentley, English author and poet (b. 1875)
- 1959 – Daniil Andreyev, Russian mystic and poet (b. 1906)
- 1959 – John Auden, English solicitor, deputy coroner and a territorial soldier (b. 1894)
- 1959 – Riccardo Zanella, Italian politician (b. 1875)
- 1960 – Joseph Haas, German composer and educator (b. 1879)
- 1961 – Philibert Jacques Melotte, English astronomer (b. 1880)
- 1963 – Aleksandr Gauk, Russian conductor and composer (b. 1893)
- 1964 – Nella Larsen, American nurse and author (b. 1891)
- 1965 – Philip Showalter Hench, American physician and academic, Nobel Prize laureate (b. 1896)
- 1966 – Newbold Morris, American lawyer and politician (b. 1902)
- 1966 – Maxfield Parrish, American painter and illustrator (b. 1870)
- 1966 – Erwin Piscator, German director and producer (b. 1893)
- 1967 – Frank Thorpe, Australian public servant (b. 1885)
- 1967 – Jean Toomer, American poet and novelist (b. 1894)
- 1969 – Lucien Bianchi, Belgian racing driver (b. 1934)
- 1970 – Heinrich Brüning, German economist and politician, Chancellor of Germany (b. 1885)
- 1972 – Mahir Çayan, Turkish politician (b. 1946)
- 1972 – Gabriel Heatter, American radio commentator (b. 1890)
- 1973 – Douglas Douglas-Hamilton, 14th Duke of Hamilton, Scottish pilot and politician (b. 1903)
- 1973 – Yves Giraud-Cabantous, French racing driver (b. 1904)
- 1975 – Peter Bamm, German journalist and author (b. 1897)
- 1977 – Levko Revutsky, Ukrainian composer and educator (b. 1889)
- 1978 – George Paine, English cricketer and coach (b. 1908)
- 1978 – Memduh Tağmaç, Turkish general (b. 1904)
- 1979 – Airey Neave, English colonel, lawyer, and politician, Shadow Secretary of State for Northern Ireland (b. 1916)
- 1979 – Ray Ventura, French pianist and bandleader (b. 1908)
- 1981 – DeWitt Wallace, American publisher, co-founded Reader’s Digest (b. 1889)
- 1984 – Karl Rahner, German-Austrian priest and theologian (b. 1904)
- 1985 – Harold Peary, American actor and singer (b. 1908)
- 1986 – James Cagney, American actor and dancer (b. 1899)
- 1986 – John Ciardi, American poet and etymologist (b. 1916)
- 1988 – Edgar Faure, French historian and politician, Prime Minister of France (b. 1908)
- 1990 – Harry Bridges, Australian-born American activist and trade union leader (b. 1901)
- 1992 – Manolis Andronikos, Greek archaeologist and academic (b. 1919)
- 1993 – S. M. Pandit, Indian painter (b. 1916)
- 1993 – Richard Diebenkorn, American painter (b. 1922)
- 1995 – Rozelle Claxton, American pianist (b. 1913)
- 1995 – Tony Lock, English-Australian cricketer and coach (b. 1929)
- 1995 – Paul A. Rothchild, American record producer (b. 1935)
- 1996 – Hugh Falkus, English pilot and author (b. 1917)
- 1996 – Ryoei Saito, Japanese businessman (b. 1916)
- 2000 – Rudolf Kirchschläger, Austrian judge and politician, 8th President of Austria (b. 1915)
- 2002 – Queen Elizabeth The Queen Mother of the United Kingdom (b. 1900)
- 2002 – Anand Bakshi, Indian poet and lyricist (b. 1930)
- 2003 – Michael Jeter, American actor (b. 1952)
- 2003 – Valentin Pavlov, Russian banker and politician, 11th Prime Minister of the Soviet Union (b. 1937)
- 2004 – Alistair Cooke, English-American journalist and author (b. 1908)
- 2004 – Hubert Gregg, English actor and director (b. 1914)
- 2004 – Michael King, New Zealand historian and author (b. 1945)
- 2004 – Timi Yuro, American singer and songwriter (b. 1940)
- 2005 – Robert Creeley, American novelist, essayist, and poet (b. 1926)
- 2005 – Milton Green, American hurdler and soldier (b. 1913)
- 2005 – Fred Korematsu, American political activist (b. 1919)
- 2005 – O. V. Vijayan, Indian author and illustrator (b. 1930)
- 2005 – Mitch Hedberg, American stand-up comedian (b. 1968)
- 2006 – Red Hickey, American football player and coach (b. 1917)
- 2006 – John McGahern, Irish author and educator (b. 1934)
- 2007 – John Roberts, Canadian political scientist, academic, and politician, 46th Secretary of State for Canada (b. 1933)
- 2008 – Roland Fraïssé, French mathematical logician (b. 1920)
- 2008 – David Leslie, Scottish racing driver (b. 1953)
- 2008 – Richard Lloyd, English racing driver (b. 1945)
- 2008 – Dith Pran, Cambodian-American photographer and journalist (b. 1942)
- 2010 – Jaime Escalante, Bolivian-American educator (b. 1930)
- 2010 – Morris R. Jeppson, American lieutenant and physicist (b. 1922)
- 2010 – Martin Sandberger, German SS officer (b. 1911)
- 2012 – Janet Anderson Perkin, Canadian baseball player and curler (b. 1921)
- 2012 – Aquila Berlas Kiani, Indian-Canadian sociologist and academic (b. 1921)
- 2012 – Francesco Mancini, Italian footballer and coach (b. 1968)
- 2012 – Granville Semmes, American businessman, founded 1-800-Flowers (b. 1928)
- 2012 – Leonid Shebarshin, Russian KGB officer (b. 1935)
- 2013 – Daniel Hoffman, American poet and academic (b. 1923)
- 2013 – Bobby Parks, American basketball player and coach (b. 1962)
- 2013 – Phil Ramone, South African-American songwriter and producer, co-founded A & R Recording (b. 1934)
- 2013 – Edith Schaeffer, Chinese-Swiss religious leader and author, co-founded L’Abri (b. 1914)
- 2013 – Bob Turley, American baseball player and coach (b. 1930)
- 2014 – Ray Hutchison, American lawyer and politician (b. 1932)
- 2014 – Kate O’Mara, English actress (b. 1939)
- 2015 – Helmut Dietl, German director, producer, and screenwriter (b. 1944)
- 2015 – Roger Slifer, American author, illustrator, screenwriter, and producer (b. 1954)
- 2015 – Ingrid van Houten-Groeneveld, Dutch astronomer and academic (b. 1921)
- 2018 – Bill Maynard, English actor (b. 1928)
- 2020 – Bill Withers, American musician (b. 1938)
Holidays and observances on March 30
- Christian feast day:
- Blessed Amadeus IX, Duke of Savoy
- Blessed Maria Restituta Kafka
- John Climacus
- Mamertinus of Auxerre
- Quirinus of Neuss
- Thomas Son Chasuhn, Marie-Nicolas-Antoine Daveluy (part of The Korean Martyrs)
- Tola of Clonard
- March 30 (Eastern Orthodox liturgics)
- Earliest day on which the first day of Hocktide can fall, while April 3 is the latest; observed on the second Monday after Easter. (Hungerford, England; popular in medieval England)
- Land Day (Palestine)
- National Doctors’ Day (United States)
- Spiritual Baptist/Shouter Liberation Day (Trinidad and Tobago)
- School Day of Non-violence and Peace (Spain)