| 21/3/2021 | Ionikos Hellenic Coin defeats Larissa Bread Factory 83-76 and Nikos Hougaz scores 7/7 three-pointers, which is the top performance over the last 13 years and equals the second top in the history of the Stoiximan Basket League (Milan Tomic 16/51998 in the third small final of the playoffs between Olympiacos and AEK, George Bozikas on 27/4/2004, in the third match of the first phase of the playoffs of 2002 with Ionikos of New Philadelphia against Aris and Costas Vassiliadis with PAOK on 9 November 2003, against Makedonikos). At the same time, the seven three-pointers are the most scored by a racket player in the history of the professional Championship! The absolute record in the professional Championship is that of the 8/8 three-pointers made by Brad Newley on 10/11/2007 with Panionios, in the 4th game of the 2007-08 Championship against AEK. |
| 21/3/2020 | Lorenzo Sanz, former Real Madrid president (1995-2000) dies of coronavirus at the age of 76. Under his presidency, Real Madrid won in 1998 by beating Juventus in the final in Amsterdam. Two years later, Real Madrid won the competition again, beating Valencia in Paris. The team also won one league title, a Spanish Super Cup and an Intercontinental Cup. |
| 21/3/2019 | Greek Eva Asderaki becomes the first female tennis umpire to umpire a men's US Open tennis final, that of Roger Federer – Noval Djokovic 3-1 (6-4, 5-7, 6-4, 6-4) |
| 21/3/2015 | Bulgarian Milen Dobrev, the weightlifting gold medallist in the 94kg category at the 2004 Athens Olympic Games, is found dead at his home, aged 35. Dobrev has won 11 Olympic titles since 1972 and has also claimed gold at the 2003 world championships and won two European titles before retiring in 2008. |
| 21/3/2013 | Italian sprinter and politician Pietro Mennea dies in a Rome hospital after a long battle with an unspecified incurable disease at the age of 60 years. He was the 1980 Moscow Olympic 200 meter champion, and also held the 200 m world record of 19.72, set on 12/9/1979 in Mexico City, beating Tommie Smith's time of 19.83 set on the same track in the 1968 Summer Olympics. His record held for 17 years before Michael Johnson broke it on 23/6/1996 with 19,66 at the 1996 U.S. Olympic Trials. |
| 21/3/2008 | Ioannis Drimonakos wins the gold medal at the 200m butterfly final race with 1:54.16 (new European record) at the 29th LEN European Swimming Championships in Eindhoven, Netherlands. Moreover, Aris Grigoriadis wins the gold medal at the 50m backstroke final with 25.13. |
| 21/3/1999 | OFI defender Paulos Adamos is seriously injured in a match against Panelefsiniakos and has to undergo an operation to stop internal bleeding |
| 21/3/1999 | Swiss Bertrand Piccard and British Brian Jones circumnavigate the globe non-stop in a hot air balloon (19 days, 21 hours and 55 minutes) |
| 21/3/1999 | Kavala defeat Panathinaikos (2-1) for the first time in 22 years |
| 21/3/1998 | Australian Emma George sets new world indoors record in pole vault with 4.59m at Brisbane |
| 21/3/1995 | Peter Ofori Quaye makes his debut with Kalamata and becomes the youngest player (17 years old) in the Greek league |
| 21/3/1979 | EPAE is officially founded |
| 21/3/1964 | The UCLA Bruins beat Duke 98-83 completing an undefeated NCAA basketball season (30-0) |
| 21/3/1963 | Ultiminio ''Sugar'' Ramos knocks out David Moore, the 1959 world champion in feather category. One hour after the fight Moore falls in a coma and passes away two days later in Los Angeles |
| 21/3/1953 | 12 players (NBA record, 106 fouls) are fouled out in a play-off game between Boston Celtics and Syracuse Nationals (111-105 in 4 overtimes). Bob Cousy scores 50 points, 30 of which from free throws |
| 21/3/1946 | First game of the Mexican Baseball League |
| 21/3/1911 | Panathinaikos plays the first exhibition match in lawn hockey in Greece. The hockey department will be dissolved due to lack of opponents but it will be re-established in the1930s and the club will win 10 consecutive titles |
| 21/3/1909 | American cyclists Moran and McFarland win the first European 6-day cycling race in Berlin |
| 21/3/1906 | England beat France 35-8 in their first rugby match |
| 21/3/1874 | Queen's Park defeat Clydesdale 2-0 for the first Scottish FA Cup in front of 3.500 spectators at Hampden Park |
| 21/3/1868 | Jane Cunningham Croly founds ''Sorosis'', the first women's club in New York |
