Avar–Byzantine wars: The Avars lift the siege at the Byzantine stronghold of Tomis. Their leader Bayan I retreats north of the Danube River after the Avaro-Slavic army is decimated by the plague.

The people of Sicily rebel against the Angevin king Charles I, in what becomes known as the Sicilian Vespers.

Edward I sacks Berwick-upon-Tweed, during armed conflict between Scotland and England.

Guru Gobind Singh establishes the Khalsa in Anandpur Sahib, Punjab.

Joachim Murat issues the Rimini Proclamation, among the earliest calls for Italian unification.

Physicist Augustin Fresnel reads a memoir on optical rotation to the French Academy of Sciences, reporting that when polarized light is "depolarized" by a Fresnel rhomb, its properties are preserved in any subsequent passage through an optically-rotating crystal or liquid.

The Florida Territory is created in the United States.

The National Bank of Greece is founded in Athens.

Ether anesthesia is used for the first time, in an operation by the American surgeon Dr. Crawford Long.

One of the most important battles of the Dominican War of Independence from Haiti takes place near the city of Santiago de los Caballeros.

Origins of the American Civil War: "Border Ruffians" from Missouri invade Kansas and force election of a pro-slavery legislature.

The Treaty of Paris is signed, ending the Crimean War.

Discovery of the chemical elements: Sir William Crookes announces his discovery of thallium.

Danish prince Wilhelm Georg is chosen as King George of Greece.

Alaska is purchased from Russia for $7.2 million, about two cents/acre ($4.19/km2), by United States Secretary of State William H. Seward.

Texas is readmitted to the United States Congress following Reconstruction.

The Battle for Kushka triggers the Panjdeh Incident which nearly gives rise to war between the Russian and British Empires.

German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.

Archaeologists in Knossos, Crete, discover the first clay tablet with hieroglyphic writing in a script later called Linear B.

Sultan Abd al-Hafid signs the Treaty of Fez, making Morocco a French protectorate.

Beginning of the bloody March Events in Baku and other locations of Baku Governorate.

The Heinkel He 100 fighter sets a world airspeed record of 463 mph (745 km/h).

Second Sino-Japanese War: Japan declares Nanking capital of a new Chinese puppet government, nominally controlled by Wang Jingwei.

World War II: Allied bombers conduct their most severe bombing run on Sofia, Bulgaria.

World War II: Soviet forces invade Austria and capture Vienna. Polish and Soviet forces liberate Danzig.

Cold War: A riot breaks out in Austurvöllur square in Reykjavík, when Iceland joins NATO.

Tenzin Gyatso, the 14th Dalai Lama, flees Tibet for India.

The Single Convention on Narcotic Drugs is signed in New York City.

Vietnam War: A car bomb explodes in front of the United States Embassy, Saigon, killing 22 and wounding 183 others.

Delta Air Lines Flight 9877 crashes at Louis Armstrong New Orleans International Airport, killing 19.

Vietnam War: The Easter Offensive begins after North Vietnamese forces cross into the Demilitarized Zone (DMZ) of South Vietnam.

Israeli-Palestinian conflict: in the first organized response against Israeli policies by a Palestinian collective since 1948, Palestinians create the first Land Day.

Airey Neave, a British Member of Parliament (MP), is killed by a car bomb as he exits the Palace of Westminster. The Irish National Liberation Army claims responsibility.

U.S. President Ronald Reagan is shot in the chest outside a Washington, D.C., hotel by John Hinckley Jr.; three others are wounded in the same incident.

Space Shuttle program: STS-3 mission is completed with the landing of Columbia at White Sands Missile Range, New Mexico.

Cyclone Glenda, one of the strongest tropical cyclones in the Australian region makes landfall near Onslow, Western Australia.

Drolma Kyi arrested by Chinese authorities.

Twelve gunmen attack the Manawan Police Academy in Lahore, Pakistan.

Min Aung Hlaing is appointed as the Commander-in-Chief of Myanmar's armed forces.

SpaceX conducts the world's first reflight of an orbital class rocket.

The Israeli Army kills 17 Palestinians and wounds 1,400 in Gaza during Land Day protests.

Donald Trump becomes the first former United States president to be indicted by a grand jury.

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HistoryMaps Presents
Today in History
Mar 30

Shop Now

HistoryMaps PresentsToday in HistoryMar 30Enter

HistoryMaps Presents
Today in History
Mar 30