The World War II Memorial is dedicated in Washington, D.C.

U.S. Supreme Court rules that disabled golfer Casey Martin can use a cart to ride in tournaments.

Space Shuttle Discovery completes the first docking with the International Space Station.

Olusegun Obasanjo takes office as President of Nigeria, the first elected and civilian head of state in Nigeria after 16 years of military rule.

The Russian parliament elects Boris Yeltsin president of the Russian SFSR.

Signing of an agreement Egypt - U.S. manufacturing parts of the fighter F-16 in Egypt.

U.S. President Ronald Reagan begins his first visit to the Soviet Union when he arrives in Moscow for a superpower summit with Soviet leader Mikhail Gorbachev.

Amputee Steve Fonyo completes cross-Canada marathon at Victoria, British Columbia, after 14 months.

Heysel Stadium disaster: At the European Cup final in Brussels, Belgium, 39 football fans die and hundreds are injured when a dilapidated retaining wall collapses after Liverpool F.C. fans breach a fence separating them from Juventus F.C. fans.

Pope John Paul II becomes the first pontiff to visit Canterbury Cathedral.

Tom Bradley is elected the first black mayor of Los Angeles, California.

General strike in Córdoba, Argentina, leading to the ''Cordobazo'' civil unrest.

The Arab League meets in East Jerusalem to discuss the Palestinian question, leading to the formation of the Palestinian Liberation Organization.

First of the annual Bilderberg conferences.

Edmund Hillary and Sherpa Tenzing Norgay become the first people to reach the summit of Mount Everest, on Tenzing Norgay's (adopted) 39th birthday.

The ''St. Roch'', the first ship to circumnavigate North America, arrives in Halifax, Nova Scotia .

Creation of the United Nations Peacekeeping Force the United Nations Truce Supervision Organisation

First combat mission of the Consolidated B-32 Dominator heavy bomber.

Bing Crosby, the Ken Darby Singers and the John Scott Trotter Orchestra record Irving Berlin's "White Christmas", the best-selling Christmas single in history, for Decca Records in Los Angeles.

The first flight of the F4U Corsair.

Albanian fascist leader Tefik Mborja is appointed as member of the Italian Chamber of Fasces and Corporations.

World War I Veterans begin to assemble in Washington, DC in the Bonus Army to request cash bonuses promised to them to be paid in 1945.

AEK Athens FC is established on the anniversary of the siege of Constantinople by the Turks.

The Republic of Prekmurje founded

Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington's observation of a total solar eclipse in Principe and by Andrew Crommelin in Sobral, Ceará, Brazil.

Armenia defeats the Ottoman Army in the Battle of Sardarapat.

Ocean liner {{RMS|Empress of Ireland|1906|6}} sinks in the Gulf of St. Lawrence with the loss of 1,024 lives.

Igor Stravinsky's ballet score ''The Rite of Spring'' receives its premiere performance in Paris, provoking a riot.

May coup d'etat: Alexander Obrenovich, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (''Crna Ruka'') organization.

N'Djamena was founded as Fort-Lamy by French commander Émile Gentil

Chemist John Pemberton places his first advertisement for Coca-Cola, the ad appearing in the ''Atlanta Journal''.

The assassination of Michael Obrenovich III, Prince of Serbia, in Belgrade.

The Austro-Hungarian agreement known as Ausgleich ("the Compromise") is born through Act 12, which establishes the Austro-Hungarian Empire; on June 8 Emperor Franz Joseph is crowned King of Hungary.

Emperor Maximilian of Mexico arrives in Mexico for the first time.

Wisconsin is admitted as the 30th U.S. state.

Rhode Island becomes the last of the original United States' colonies to ratify the Constitution and is admitted as the 13th U.S. state.

American Revolutionary War: At the Battle of Waxhaws Lieutenant Colonel Banastre Tarleton massacres Colonel Abraham Buford's continentals allegedly after the continentals surrender. 113 Americans are killed.

The right of Canadians to keep Indian slaves is upheld at Quebec City.

Peter II becomes Tsar of Russia.

Treaty of Middle Plantation establishes peace between the Virginia colonists and the local Natives.

English Restoration: Charles II (on his birthday – see below) is restored to the throne of Great Britain.

Fall of Constantinople: Ottoman armies under Sultan Mehmed II Fatih capture Constantinople after a 53-day siege, ending the Byzantine Empire. Although the date of May 29, 1453 is that of the Julian Calendar, the event is commemorated in Istanbul on this day of the present Gregorian calendar.

Council of Constance.

Battle of Legnano: The Lombard League defeats Emperor Frederick I.

Battle of Monte Porzio

Roman Emperor Julian defeats the Sassanid army in the Battle of Ctesiphon, under the walls of the Sassanid capital, but is unable to take the city.