Twenty-one of the MiG-29s were sold to the United States in October 1997 to prevent their sale on the world market, and for research purposes.

Twenty-one people died and thousands were injured during the 19 days of protests.

* June 30 – Twenty-one students were killed and more than a hundred were injured when an American North American F-100 Super SabreF-100 jet crashed into Miamori Elementary School on the island of Okinawa.

Twenty-one Douglas DC-4 airliners were converted into car ferries as the ATL-98 Carvair, a major task that included replacing the aircraft's original forward fuselage with an extended version incorporating the flight-deck above the cargo hold and a side-hinged nose door through which five cars could be loaded, one at a time, by means of a mobile, ground-based " scissor " lift.

Twenty-one children from the Alton area were drowned, and 49 were injured.

Twenty-one half-hour episodes were produced by Ruby-Spears Productions, an animation house formed by former Hanna-Barbera head writers Joe Ruby and Ken Spears, from October 1980 to September 1982, when the show went off the air.

Twenty-one percent of all households were made up of individuals and 9. 30 percent had someone living alone who was 65 years of age or older.

Twenty-one of the union guerrillas were captured and several others were wounded and killed.

* Spearmint tea: Twenty-one female hirsute patients, 12 with polycystic ovary syndrome and 9 with idiopathic hirsutism were included to the study in which they drank one cup of spearmint tea a day for 5 days, after which there was significant decrease in free testosterone and increase in luteinizing hormone, follicle-stimulating hormone and estradiol

Twenty-one children from the Alton area drowned, and forty-nine were injured.

Twenty-one schools, mainly schools providing reserve officers during the World Wars, were awarded the Légion d ' honneur.

Twenty-one diorama paintings were exhibited in the first eight years.

Twenty-one teenagers from Safed on a class trip were murdered in the attack.

Twenty-one people were killed and 51 injured.

Twenty-one passengers were found with little or no clothing.

Twenty-one local college trustees were listed in Acts of Alabama, Eleventh Annual Session.

Twenty-one thousand such tablets were seized and destroyed by the U. S. Food and Drug Administration in 1958.

Twenty-one others were sentenced to death and executed, and 734 more were imprisoned.

Twenty-one interviews were cited, the " x -#" refers to the document number in this volume only.

Twenty-one acquired companies were in the metals business, including Wah Chang and Cast Products, and this led to the acquisition of firms producing industrial machines and machine tools.

* 1986 – Twenty-one people are killed and forty-one are injured after a bomb explodes in an airliner ( Flight UL512 ) at Colombo airport in Sri Lanka.

May 3, 1970: Twenty-one Palestinian guerrillas are killed by Israeli troops in the Jordan Valley

Twenty-one are recorded as killed in action and one killed in battle, fourteen being killed during the attempt to blow up the Achziv Bridge during the Night of the bridges.

Twenty-one dukes have been wounded or killed as hereditary Champion of France over the centuries.

Twenty-one firemen, including Fire Chief James J. Horan, and three civilians were killed when one of the blazing buildings collapsed with them inside.

We killed Mr. de Jumonville, the commander ... also nine others ; we wounded one, and made Twenty-one Prisoners ".

Twenty-one of the Rebels were killed in the fray but despite this they eventually overcame the loyalists inhabitants.

Twenty-one people were killed and 150 injured as an immense wave of molasses crushed and asphyxiated many of the victims to death.

`` Twenty-one '', replied the sheik.

Twenty-one bodies are recovered.

* 1981 – Twenty-one association football spectators are trampled to death at Karaiskakis Stadium in Neo Faliro, Greece, after a football match between Olympiacos F. C.

He is best known for his book Twenty-one Days in India ( 1878 – 1879 ), a satire upon Anglo-Indian society and modes of thought.

Twenty-one modern states have a coastline on the Mediterranean Sea.

Twenty-one years after, it will host the contest again, after Swedish singer Loreen's victory in at Eurovision Song Contest 2012, in Baku, Azerbaijan.

Twenty-one comics and graphic artists collaborated on the new cards, including Zina Saunders, daughter of the original artist.

The notorious Twenty-one Conditions are adopted.

* September 12 – The Battle of Saragarhi: Twenty-one Sikhs of the 36th Sikh of the Sikh Regiment of British India, defend an army post against 10, 000 Afghan and Orakzai tribesmen.

Twenty-one guns announced the event, a national holiday was called, gambling ceased, and free champagne flowed throughout the principality.

In January 1915, having captured the German colony at Qingdao, Japan sent a secret ultimatum, known as the Twenty-one Demands, to Beijing.

Twenty-one dukes in two dynasties ruled the Archipelago, until 1566 ; Venetian rule continued in scattered islands of the Aegean until 1714.

Twenty-one other members of Charlie Company also testified on Calley's defense corroborating the orders.

Twenty-one years later, the Sac ( Sauk ), Meskwaki ( Fox ), and Iowa Native American nations ceded their tribal land to the U. S. government under two treaties in August 1824.