Twenty-one healthy volunteers participated in the study.

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 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.

Twenty-one local authorities are involved in the scheme, including Leeds City Council, caring for eleven collections, and Bournemouth Borough Council with their Abelia and Clethra collections.

Twenty-one players admitted in court to having " dumped " games — intentionally causing their teams to lose in exchange for money.

Twenty-one of them ( including fourteen from Australia ) were swept to their deaths in the worst disaster to hit the sport.

Twenty-one ( 21 ) rallyists who were determined to paralyze traffic, died on the spot on the streets of Escalante when the militia of then-strongman Congressman Armando Gustilo, who was bent on dispersing the rally, fired their guns on rallyists.

Twenty-one years later, the Tegenpartij sketches once again became topical, because of their strong resemblance in parts to the rise of the right-wing political party Pim Fortuyn List.

Twenty-one countries denied him entry, causing Osho to travel the world before returning to Poona, where he died in 1990.

In November 1940, Wang's government signed the " Sino-Japanese Treaty " with the Japanese, a document that has been compared with Japan's Twenty-one Demands for its broad political, military, and economic concessions.

Twenty-one of the holes remain unexcavated and no reliable dating material has been recovered from the other thirty-five.

Twenty-one aircraft carriers conducted 86 war cruises and operated 9, 178 total days on the line in the Gulf of Tonkin.

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

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

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

Twenty-one homilies on some of Knox's favourite saints, including St Cecilia, St Dominic, St Joan of Arc and St Ignatius of Loyola.

Twenty-one years later on October 21, 1993, the Trust was vested, and the Trustees began the process of winding up Koe Guan Kong Lun.

Twenty-one days after, on 8 March, the 15-years-old Queen Catherine died in childbirth.

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

Twenty-one people, standing on the launch pad, died when one of the rocket's four first stage motors ignited accidentally.

Twenty-one years later, Virginia Dare, born in 1587 on Roanoke Island in present-day North Carolina, was the first child born in the Thirteen Colonies to English parents.

* Twenty-one texts on dinosaur tracks from the coal mines of central Utah

Twenty-one minutes later the aircraft broke up in mid-air, killing all on board.

Twenty-one panels make up the 16 ’ × 5 ’ Jesse Tree window, based on the twelfth century Jesse Tree from Chartres Cathedral.

Twenty-one powers and states attended a conference held on the question at Brussels in 1863, and on the 15th of July the treaty freeing the Scheldt was signed.

Twenty-one African countries have been identified as the highest spenders of gross domestic product on military globally compared with the amount directed toward education.

Twenty-one members of the party turned back, but Lederer pushed on with Jackzetavon, one of his five Iroquoian-speaking Susquehannock guides.

`` 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 Americans were killed.

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.

* 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.

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

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.

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.

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 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.