Martyrdom of Saint Adrian of Nicomedia.

MartyrdomAdrian of Nicomedia

Croatian Knez Trpimir I issues a statute, a document with the first known written mention of the Croats name in Croatian sources.

Knez (title)Trpimir I of CroatiaStatuteCroats

Translation of the relics of martyr Wenceslaus I, Duke of Bohemia, Prince of the Czechs.

RelicMartyrWenceslaus I, Duke of BohemiaCzechs

Frederick I Barbarossa is elected King of Germany.

Frederick I, Holy Roman EmperorKing of Germany

The Battle of the Sit River is fought in the northern part of the present-day Yaroslavl Oblast of Russia between the Mongol hordes of Batu Khan and the Russians under Yuri II of Vladimir-Suzdal during the Mongol invasion of Rus'.

Battle of the Sit RiverYaroslavl OblastMongol hordeBatu KhanYuri II

Ramathibodi becomes King of Siam.

Ramathibodi IMonarchy of Thailand

Władysław II Jagiełło (Jogaila) is crowned King of Poland.

Władysław II JagiełłoKing of Poland

Wars of the Roses in England: Lancastrian King Henry VI is deposed by his House of York cousin, who then becomes King Edward IV.

Wars of the RosesHouse of LancasterHenry VI of EnglandHouse of YorkEdward IV of England

Explorer Christopher Columbus arrives back in Lisbon, Portugal, aboard his ship Niña from his voyage to what is now The Bahamas and other islands in the Caribbean.

Christopher ColumbusLisbonNiñaVoyages of Christopher ColumbusThe Bahamas

Hernán Cortés arrives in Mexico in search of the Aztec civilization and its wealth.

Hernán CortésAztec

The Massachusetts Bay Colony is granted a Royal charter.

Massachusetts Bay ColonyRoyal charter

English King Charles II declares war on the Netherlands marking the start of the Second Anglo-Dutch War.

Charles II of EnglandSecond Anglo-Dutch War

John Flamsteed is appointed the first Astronomer Royal of England.

John FlamsteedAstronomer Royal

Charles II grants a land charter to William Penn for the area that will later become Pennsylvania.

William PennPennsylvania

American Revolutionary War: The Continental Army fortifies Dorchester Heights with cannon, leading the British troops to abandon the Siege of Boston.

American Revolutionary WarContinental ArmyFortification of Dorchester HeightsDorchester HeightsCannon

In New York City, the first Congress of the United States meets, putting the United States Constitution into effect. The United States Bill of Rights is written and proposed to Congress.

1st United States CongressCongress of the United StatesUnited States ConstitutionUnited States Bill of Rights

France is divided into 83 départements, cutting across the former provinces in an attempt to dislodge regional loyalties based on ownership of land by the nobility.

Departments of FranceProvinces of France

The Constitutional Act of 1791 is introduced by the British House of Commons in London which envisages the separation of Canada into Lower Canada (Quebec) and Upper Canada (Ontario).

Constitutional Act of 1791House of Commons of the United KingdomLower CanadaQuebecUpper Canada

Vermont is admitted to the United States as the fourteenth state.

VermontAdmission to the UnionU.S. state

The 11th Amendment to the U.S. Constitution is passed by the U.S. Congress.

Eleventh Amendment to the United States ConstitutionUnited States Congress

John Adams is inaugurated as the 2nd President of the United States of America, becoming the first President to begin his presidency on March 4.

John AdamsPresident of the United States of America

Castle Hill Rebellion: Irish convicts rebel against British colonial authority in the Colony of New South Wales.

Castle Hill convict rebellionNew South Wales

Cyril VI of Constantinople is elected Ecumenical Patriarch of Constantinople.

Cyril VI of ConstantinopleEcumenical Patriarch of Constantinople

Americans defeat British forces at the Battle of Longwoods between London, Ontario and Thamesville, near present-day Wardsville, Ontario.

Battle of LongwoodsLondon, OntarioSouthwest Middlesex, Ontario

The city of Chicago is incorporated.

Chicago

Carlo Alberto di Savoia signs the Statuto Albertino that will later represent the first constitution of the Regno d'Italia.

Charles Albert of SavoyStatuto AlbertinoConstitution of ItalyItaly

The first national flag of the Confederate States of America (the "Stars and Bars") is adopted.

Flags of the Confederate States of AmericaConfederate States of America

The third and final national flag of the Confederate States of America is adopted by the Confederate Congress.

Flags of the Confederate States of AmericaConfederate States of America

Britain's first electric trams run in east London.

Trams in London

Nero, later to become Roman emperor, is given the title princeps iuventutis (head of the youth).

NeroRoman emperorPrinceps iuventutis