May 6 is the 126th day of the year in the Gregorian calendar, 127th when it is a leap year (there are then 239 left).
Its equivalent was usually 17 Floréal of the French Republican/Revolutionary calendar, officially referred to as Pimprenelle Day (a plant).
May 5 - May 6 - May 7
1097: the first crusade arrives in front of the walls of Nicaea.
1250: Louis IX, future Saint Louis, prisoner during the Seventh Crusade, is released against a large ransom.
1299: beginning of the seven-year siege of Tlemcen by the Merinids.
1527: sack of Rome by Constable Charles III of Bourbon and his men, in the service of Charles V.
1536: Beginning of the siege of Cuzco, during which the Incas attempt to retake the city from the Spaniards.
1542: the Jesuit François Xavier lands in Goa, then a Portuguese possession, in order to evangelize the Indians.
1659: A faction of the British army removes the title of Lord Protector from Oliver Cromwell, and reinstalls the Rump Parliament (English Restoration).
1667: Jean-Baptiste Gonthier, lord of Long(u)eville, born in 1622, received adviser to the Grand Council of the Parliament of Paris in 1649, is received president in the Chamber of Accounts of Paris, office which he will occupy until 1675.
1682: Louis XIV of France moves his court to the Palace of Versailles.
the battle of Prague sees the victory of the Prussians over the Austrians and the Russians (Seven Years' War).
With the end of the Konbaung–Hanthawaddy War, the Burmese Civil War which began in 1740 ended.
1789: the deputies of the Third Estate meet in the Salle des Etats at Versailles, while the clergy and the nobility decide to verify their respective powers separately.
1801: Captain Thomas Cochrane and the crew of HMS Speedy capture the Spanish frigate El Gamo.
1857: the British East India Company disbands the 34th Bengali infantry regiment at the head of which the sepoy Mangal Pandey had launched a recent uprising against the British occupiers. This one becomes the first martyr of the revolt of the sepoys.
1861: Arkansas secedes from the Union (Civil War).
1863: end of the Battle of Chancellorsville, in the United States, which began on May 2.
1864: end of the Battle of the Wilderness, in the United States, begun the day before.
1877: Native American leader Crazy Horse surrenders to American troops.
Thomas Henry Burke and Lord Frederick Cavendish are stabbed to death during the so-called "Phoenix Park Murders" event in Dublin.
the United States Congress passes the Chinese Exclusion Act.
1891: signing of the Third Triple Alliance, between the German Empire, the Austro-Hungarian Empire and the Kingdom of Italy.
1902: Macario Sakay founds the Republic of Tagalog of which he takes the presidency.
1906: Adoption of the Russian Constitution of 1906 (in) (April 23 in the Julian calendar).
1910: George V becomes King of the United Kingdom following the death of his father, Edward VII.
1916: The Ottomans hang twenty-one Lebanese nationalists on Mount Lebanon who were demanding Lebanon's independence from the Ottoman Empire. Their memory is commemorated in Place des Martyrs in Beirut.
1930: a 7.1 Mw earthquake causes tremors between northeastern Iran and southwestern Turkey, resulting in the death of more than three hundred victims. The epicenter reaches degree X (or “extreme”) on the Mercalli scale.
1932: the President of the French Republic, Paul Doumer, is assassinated by Gorgoulov, a fascist Russian.
1933: the Deutsche Studentenschaft (“Union of German Students”) attacks the Institut für Sexualwissenschaft (“Institute of Sexology”) of Magnus Hirschf