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18th April

All events from this date in history

12
Events
8
Birthdays
5
Deaths

War of the First Coalition: The Peace of Leoben is signed by Napoleon Bonaparte and Maximilian, Count of Merveldt, creating an armistice between France and Austria, setting the stage for the Treaty of Campo Formio and ending the War of the First Coalition.[citation needed]

The War of the First Coalition was a set of wars between a coalition of several European powers and France fought between 1792 and 1797. The coalition was only loosely allied and fought without much…

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Peace of Ferrara between Republic of Venice, Duchy of Milan, Republic of Florence and House of Gonzaga: ending of the second campaign of the Wars in Lombardy fought until the Treaty of Lodi in 1454, which will then guarantee the conditions for the development of the Italian Renaissance.

The Republic of Venice, officially the Most Serene Republic of Venice and traditionally known as La Serenissima, was a sovereign state and maritime republic with its capital in Venice, on the…

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Three-Fifths Compromise: The first instance of black slaves in the United States of America being counted as three-fifths of persons (for the purpose of taxation), in a resolution of the Congress of the Confederation. This was later adopted in the 1787 Constitution.

The Three-fifths Compromise, also known as the Constitutional Compromise of 1787, was an agreement reached during the 1787 United States Constitutional Convention over the inclusion of slaves in…

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American Revolution: The British Army advances up the Charles River in Massachusetts to destroy supplies of American militias, while Paul Revere and other riders rapidly warn the countryside.

The American Revolution (1765–1789) was a political movement in the Thirteen Colonies of Great Britain. The movement began as a rebellion and evolved into a revolution resulting in the sovereign…

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The United States launches Operation Praying Mantis against Iranian naval forces in the largest naval battle since World War II.

Operation Praying Mantis was the 18 April 1988 attack by the United States on Iranian naval targets in the Persian Gulf in retaliation for the mining of a U.S. warship four days earlier. It took…

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World War II: Over 1,000 bombers attack the small island of Heligoland, Germany.

A bomber is a military combat aircraft that utilizes air-to-ground weaponry to drop bombs, launch torpedoes, or deploy air-launched cruise missiles.

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World War II: The Doolittle Raid on Japan: Tokyo, Yokohama, Kobe and Nagoya are bombed.

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated. Tanks and aircraft played major…

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World War I: French pilot Roland Garros is shot down and glides to a landing on the German side of the lines.

World War I, or the First World War, also known as the Great War, was a global conflict between two coalitions: the Allies and the Central Powers. Major areas of conflict included Europe and the…

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In Israel John Demjanjuk is sentenced to death for war crimes committed in World War II, although the verdict is later overturned.

John Demjanjuk, was a Trawniki and Nazi camp guard at Sobibor extermination camp, Majdanek, and Flossenbürg. Demjanjuk became the center of global media attention in the 1980s, when he was tried and…

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The Greco-Turkish War is declared between Greece and the Ottoman Empire.

The Greco-Turkish War of 1897 or the Ottoman-Greek War of 1897 was fought between the Kingdom of Greece and the Ottoman Empire. Its immediate cause involved the status of the Ottoman province of…

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The Republic of Ireland Act comes into force, declaring Éire to be a republic and severing Ireland's "association" with the Commonwealth of Nations.

The Republic of Ireland Act 1948 is an Act of the Oireachtas which declares that the description of Ireland is the Republic of Ireland, and vests in the president of Ireland the power to exercise the…

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World War II: Operation Vengeance, Admiral Isoroku Yamamoto is killed when his aircraft is shot down by U.S. fighters over Bougainville Island.

Operation Vengeance was the American military operation to kill Admiral Isoroku Yamamoto of the Imperial Japanese Navy on 18 April 1943 during the Solomon Islands campaign in the Pacific Theater of…

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Gustave Moreau
1898Gustave Moreau

Gustave Moreau was a French artist and an important figure in the Symbolist movement. Jean Cassou called him "the Symbolist painter par excellence". He was an influential…

Kamisese Mara
2004Kamisese Mara

Ratu Sir Kamisese Mara, was a Fijian politician who served as Chief Minister from 1967 to 1970, when Fiji gained its independence from the United Kingdom, and, apart from one…

Erasmus Darwin
1802Erasmus Darwin

Erasmus Robert Darwin was an English physician. One of the key thinkers of the Midlands Enlightenment, he was also a natural philosopher, physiologist, abolitionist, inventor,…

Justus von Liebig
1873Justus von Liebig

Justus Freiherr von Liebig was a German scientist who made major contributions to the theory, practice, and pedagogy of chemistry, as well as to agricultural and biological…

1161Theobald of Bec

Theobald of Bec was a Norman archbishop of Canterbury from 1139 to 1161. His exact birth date is unknown. Some time in the late 11th or early 12th century Theobald became a monk…

Franz von Suppé
1819
Franz von Suppé
Franz von Suppé, born Francesco Ezechiele Ermenegildo de Suppé was an Austrian composer of light operas and other theatre music. He came from the…
Kathy Acker
1944
Kathy Acker
Kathy Acker was an American experimental novelist, poet, playwright, essayist, critic, performance artist, and postmodernist writer, known for her…
Régis Wargnier
1948
Régis Wargnier
Régis Wargnier is a French film director, film producer, screenwriter and film score composer. His 1986 film The Woman of My Life won the César Award…
Jaan Anvelt
1884
Jaan Anvelt
Jaan Anvelt, was an Estonian Bolshevik revolutionary and writer. He served the Russian SFSR, was a leader of the Communist Party of Estonia, the…
Karl Philipp, Prince of Schwarzenberg
1771
Karl Philipp, Prince of Schwarzenberg
Karl Philipp, Fürst zu Schwarzenberg was an Austrian Generalissimo and former Field Marshal. He first entered military service in 1788 and fought…
1961
John Podhoretz
John Mordecai Podhoretz is an American journalist and conservative political commentator. The son of writers Norman Podhoretz and Midge Decter, he…
Richard Harding Davis
1864
Richard Harding Davis
Richard Harding Davis was an American journalist and writer of fiction and drama, known foremost as the first American war correspondent to cover the…
Michael D. Higgins
1941
Michael D. Higgins
Michael Daniel Higgins is an Irish politician, poet and broadcaster who served as the president of Ireland from November 2011 to November 2025.…
18th April in History — War of the First Coalition: The Peace of Leoben is sign