On this day: 29 May

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

Battle of Uclés: Almoravid troops under the command of Tamim ibn Yusuf defeat a Castile and León alliance under the command of Prince Sancho Alfónsez.

Antipope Victor IV gives up his claim to the papacy due to the instigation of Bernard of Clairvaux.

Battle of Monte Porzio: A Roman army supporting Pope Alexander III is defeated by Christian of Buch and Rainald of Dassel.

Wars of the Guelphs and Ghibellines: Troops of the Lombard League defeated forces of the Holy Roman Empire at the Battle of Legnano in present-day Italy.

Philip VI is crowned King of France.

With the fall of Constantinople, the Byzantine Empire fell to the Ottomans.

The Ottoman Empire and the Safavid Empire sign a peace treaty to end the Ottoman–Safavid War of 1532–1555.

Battle of Samugarh: Decisive battle in the struggle for the throne during the Mughal war of succession (1658–1659).

The right of settlers in New France to enslave natives is upheld at Quebec City.

The Great Sejm of the Polish–Lithuanian Commonwealth was disbanded following the Russian invasion of Poland.

Mustafa IV becomes Sultan of the Ottoman Empire and Caliph of Islam.

The Coronation of Charles X of France takes place in Reims Cathedral, the last-ever coronation of a French monarch.

Sojourner Truth (pictured) delivered her "Ain't I a Woman?" speech at the Woman's Rights Convention in Akron.

Swedish operatic soprano Jenny Lind concluded a successful concert tour of the United States under the management of showman P. T. Barnum.

The Hong Kong General Chamber of Commerce is founded, in Hong Kong.

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

The Austro-Hungarian Compromise of 1867 ("the Compromise") is born through Act 12, which establishes the Austro-Hungarian Empire.

The pharmacist John Pemberton places his first advertisement for Coca-Cola, which appeared in The Atlanta Journal.

N'Djamena, now the capital of Chad, was founded as Fort-Lamy by French commander Émile Gentil.

World War I: Armenian forces defeated Ottoman troops at the Battle of Sardarabad, halting the Turkish advance and preventing further destruction of the Armenian nation.

Albert Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington and Andrew Claude de la Cherois Crommelin.

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

First flight of the Messerschmitt Bf 109 fighter aeroplane.

Bing Crosby recorded his version of the song "White Christmas", which went on to become the best-selling single worldwide, with more than 50 million copies sold.

United Nations Truce Supervision Organization is founded.

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

The mountaineers Edmund Hillary and Tenzing Norgay became the first people to reach the summit of Mount Everest.

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

Having deposed them in a January coup South Vietnamese leader Nguyễn Khánh has rival Generals Trần Văn Đôn and Lê Văn Kim convicted of "lax morality".

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

SETA, a Finnish LGBT rights organisation, is founded in Helsinki.

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

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

Signing of an agreement between Egypt and the United States that allows for the manufacture of F-16 Falcon parts in Egypt.

The Congress of People's Deputies of Russia elects Boris Yeltsin as President of the Russian Soviet Federative Socialist Republic.

The Miss Sarajevo beauty pageant is held in war-torn Sarajevo drawing global attention to the plight of its citizens.

President Olusegun Obasanjo took office as Nigeria's first elected and civilian head of state after 16 years of military dictatorship.

Charlotte Perrelli, representing Sweden, won the Eurovision Song Contest, the first edition not to feature an orchestra or live accompaniment.

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

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

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

France rejects the Constitution of the European Union in a national referendum.

Residents of Portland, Oregon, held a rally called Hands Across Hawthorne in response to an attack against a gay couple holding hands while crossing the Hawthorne Bridge.

One World Observatory at One World Trade Center opens.