WHAT HAPPENED ON 17. AUGUST
Want to find out what all happened on 17. August

Pope Eusebius is banished by the Emperor Maxentius to Sicily, where he dies, perhaps from a hunger strike. (17. August 310)

Byzantine–Bulgarian Wars: Battle of the Gates of Trajan – The Bulgarians under the Comitopuli Samuel and Aron defeat the Byzantine forces at the Gates of Trajan, with Byzantine Emperor Basil II barely escaping. (17. August 986)

Georgenberg Pact: Duke Ottokar IV of Styria and Duke Leopold V of Austria sign a heritage agreement in which Ottokar gives his duchy to Leopold and to his son Frederick under the stipulation that Austria and Styria would henceforth remain undivided. (17. August 1186)

Karl Topia, the ruler of Princedom of Albania forges an alliance with the Republic of Venice, committing to participate in all wars of the Republic and receiving coastal protection against the Ottomans in return. (17. August 1386)

Hundred Years' War: Battle of Verneuil – An English force under John, Duke of Bedford defeats a larger French army under the Duke of Alençon, John Stewart, and Earl Archibald of Douglas. (17. August 1424)

Cesare Borgia, son of Pope Alexander VI, becomes the first person in history to resign the cardinalate. On the same day, the French King Louis XII names him Duke of Valentinois. (17. August 1498)

Battle of Sampford Courtenay – The Prayer Book Rebellion is quashed in England. (17. August 1549)

The Roman Catholic Church is overthrown and Protestantism is established as the national religion in Scotland. (17. August 1560)

Eighty Years' War: Siege of Antwerp – Antwerp is captured by Spanish forces under Alexander Farnese, Duke of Parma, who orders Protestants to leave the city and as a result over half of the 100,000 inhabitants flee to the northern provinces. (17. August 1585)

A first group of colonists sent by Sir Walter Ralegh under the charge of Ralph Lane lands in the New World to create Roanoke Colony on Roanoke Island, off the coast of present-day North Carolina. (17. August 1585)

Islands Voyage: Robert Devereux, 2nd Earl of Essex, and Sir Walter Raleigh set sail on an expedition to the Azores. (17. August 1597)

Gaspar de Borja y Velasco is made a cardinal by Pope Paul V. (17. August 1611)

An earthquake with a magnitude of 8.0 on the Richter magnitude scale causes 8,000 deaths in Anatolia, Ottoman Empire. (17. August 1668)

Austro-Turkish War of 1716–18: The month-long Siege of Belgrade ends with Prince Eugene of Savoy's Austrian troops capturing the city from the Ottoman Empire. (17. August 1717)

Ioan Giurgiu Patachi becomes Bishop of Făgăraş and is festively installed in his position at the St. Nicolas Cathedral in Făgăraş, after being formally confirmed earlier by Pope Clement XI. (17. August 1723)

Edinburgh botanist James Robertson makes the first recorded ascent of Ben Nevis in Scotland (17. August 1771)

Classical composer Luigi Boccherini receives a pay rise of 12000 reals from his employer, the Infante Luis, Count of Chinchón. (17. August 1784)

The Vietnamese Roman Catholics report a Marian apparition in Quảng Trị, an event which is called Lady of La Vang. (17. August 1798)

Robert Fulton's North River Steamboat leaves New York, New York, for Albany, New York, on the Hudson River, inaugurating the first commercial steamboat service in the world. (17. August 1807)

American Indian Wars: The Dakota War of 1862 begins in Minnesota as Lakota warriors attack white settlements along the Minnesota River. (17. August 1862)