History Events on May 20
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History Events on May 20

Shakespeare's sonnets are first published in London, perhaps illicitly, by the publisher Thomas Thorpe.
#Shakespeare's_sonnets
In 1609

In the Chuknagar massacre, Pakistani forces massacre thousands, mostly Bengali Hindus.
#Chuknagar_massacre
In 1971

Yangzhou massacre: The ten day massacre of 800,000 residents of the city of Yangzhou, part of the Transition from Ming to Qing.
#Yangzhou_massacre
In 1645

The Popular Movement of the Revolution political party is established in the Democratic Republic of the Congo.
#Popular_Movement_of_the_Revolution
In 1967

Empress Ariadne marries Anastasius I. The widowed Augusta is able to choose her successor for the Byzantine throne, after Zeno (late emperor) dies of dysentery.
#Ariadne_(empress)
In 491

Treaty of Jeddah: The United Kingdom recognizes the sovereignty of King Ibn Saud in the Kingdoms of Hejaz and Nejd, which later merge to become the Kingdom of Saudi Arabia.
#Treaty_of_Jeddah_(1927)
In 1927

Krakatoa begins to erupt; the volcano explodes three months later, killing more than 36,000 people.
#Krakatoa
In 1883

Civil rights: The Supreme Court of the United States rules in Romer v. Evans against a law that would have prevented any city, town or county in the state of Colorado from taking any legislative, executive, or judicial action to protect the rights of gays and lesbians.
#LGBT_rights_in_the_United_States
In 1996

The First Council of Nicaea is formally opened, starting the first ecumenical council of the Christian Church.
#First_Council_of_Nicaea
In 325

History of cinema: The first public display of Thomas Edison's prototype kinetoscope.
#History_of_film
In 1891

The Triple Alliance between the German Empire, Austria-Hungary and the Kingdom of Italy is formed.
#Triple_Alliance_(1882)
In 1882

The International System of Units (SI): The base units are redefined, and the International Prototype Kilogram becomes obsolete.
#International_System_of_Units
In 2019

In Operation Redwing, the first United States airborne hydrogen bomb is dropped over Bikini Atoll in the Pacific Ocean.
#Operation_Redwing
In 1956

In a referendum in Quebec, the population rejects, by 60% of the vote, a government proposal to move towards independence from Canada.
#1980_Quebec_referendum
In 1980

The Mecklenburg Declaration of Independence is allegedly signed in Charlotte, North Carolina.
#Mecklenburg_Declaration_of_Independence
In 1775

The Battle of Dun Nechtain is fought between a Pictish army under King Bridei III and the invading Northumbrians under King Ecgfrith, who are decisively defeated.
#Battle_of_Dun_Nechtain
In 685

In the United States, the Armed Forces Security Agency, the predecessor to the National Security Agency, is established.
#National_Security_Agency
In 1949

U.S. President Abraham Lincoln signs the Homestead Act into law, opening 84 million acres of public land to settlers.
#Abraham_Lincoln
In 1862

By the Law of 20 May 1802, Napoleon Bonaparte reinstates slavery in the French colonies, revoking its abolition in the French Revolution.
#Law_of_20_May_1802
In 1802

At least 27 people are killed and 50 others injured when a 6.0-magnitude earthquake strikes northern Italy.
#2012_Northern_Italy_earthquakes
In 2012

Signing of the Metre Convention by 17 nations leading to the establishment of the International System of Units.
#Metre_Convention
In 1875

Portuguese explorer Vasco da Gama discovers the sea route to India when he arrives at Kozhikode (previously known as Calicut), India.
#Vasco_da_Gama
In 1498

American Civil War: Battle of Ware Bottom Church: In the Virginia Bermuda Hundred campaign, 10,000 troops fight in this Confederate victory.
#Battle_of_Ware_Bottom_Church
In 1864

King Sancho IV of Castile creates the Estudio de Escuelas de Generales in Alcalá de Henares.
#Sancho_IV_of_Castile
In 1293
An EF5 tornado strikes the Oklahoma City suburb of Moore, killing 24 people and injuring 377 others.
In 2013
In 1964
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