Hanseatic League

1200s–1669 trade confederation in Northern Europe

27 dated entries naming Hanseatic League, drawn from 26 separate years between 1143 CE and 1669 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

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12th century

1143Adolf II, count of Schauenburg and Holstein, founds Lübeck – which later becomes one of the leading Hanseatic cities. He divides the conquered Slavic lands, as part of the eastward expansion in Germany.source
1157Henry II of England grants special trading privileges to the Hansa merchants of Cologne in London who lend him money at interest.source

13th century

1207February 2 – Terra Mariana (or Medieval Livonia), comprising modern-day Estonia and Latvia, is established as a principality of the Holy Roman Empire. During its existence there is a constant struggle over supremacy between the lands ruled by the Teutonic Order, the secular German nobility, and the citizens of the Hanseatic towns of Riga and Reval.source
1259The German cities of Lübeck, Wismar, and Rostock enter into a pact to defend against pirates of the Baltic Sea, laying the groundwork for the Hanseatic League.source

14th century

1319November 13 – King Eric VI of Denmark dies after a 33-year reign at Roskilde, leaving a vacancy that will not be filled until the January election of his brother Christopher II. During his rule, he attempts to control the routes of the Hanseatic League. The Hanse, an association of Baltic merchants, expels the English and Scots, and gains a monopoly of trade with Norway.source
1323August 12 – Treaty of Nöteborg: Sweden signs a peace treaty with the Novgorod Republic, regulating the border (known as Finland today) for the first time. The treaty is negotiated with the help of the Hanseatic League in order to conclude the conflict over the control of the Gulf of Finland during the Swedish-Novgorodian Wars.source
1356The Hanseatic League, a trading alliance between many cities in northern Europe, first meets.source
1359Berlin joins the Hanseatic League.source
1362July 8 – Valdemar IV of Denmark defeats the Hanseatic League in the naval Battle of Helsingborg.source
1367November 19 – In Germany, the Kölner Konföderation is founded by eight German members of the Hanseatic League (Lübeck, Rostock, Stralsund, Wismar, Kulm and Thorn, and five non-League Dutch cities (Amsterdam, Brielle, Harderwijk,Elbing and Kampen) to fight against the Kingdom of Denmark, whose ruler King Valdemar IV, has been seizing land to expand the territory owned by the Danish crown.source
1368A peace treaty is signed between Norway and the Hanseatic League.source
1368April 4 – The siege of Copenhagen, capital of the Kingdom of Denmark, is started by the Hanseatic League as 37 ships and 2,000 soldiers arrive at the city after sailing from the German city of Lübeck under the leadership of the city's leader, Bruno von Warendorp. The invaders bring with them 400 horses and eight trebuchets (long range catapults) and four regular catapults. While the city falls in four weeks, the Absalon fortress on Slotsholmen island holds out for two months.source
1370May 24 – The Treaty of Stralsund ends the second war between Denmark and the Hanseatic League, an alliance of market towns across northern Europe along the North Sea and the Baltic Sea.source

15th century

1427Bremen is expelled from the Hanseatic League.source
1428April 6 – Dano-Hanseatic War (1426–1435): The bombardment of Copenhagen, capital of Denmark, by ships of the Northern German Hanseatic League takes place and is repelled by the Danish Navy.source
1435July 17 – Peace of Vordingborg is signed, ending the war between the Hanseatic League of German cities (Hamburg, Lübeck, Lüneburg, Rostock, Stralsund and Wismar) and the Scandinavian Kalmar Union of Denmark and Sweden. King Eric VII of Denmark and Adolph VIII, Count of Holstein sign, along with Hein Hoyer, representing the League, at Vordingborg Castle. Denmark cedes the Duchy of Schleswig to Holstein and agrees to stop interfering with the League, to end ten years of war.source
1438April 14 – The County of Holland declares war on several cities of the Hanseatic League, triggering the Dutch–Hanseatic War.source
1449May – An English privateering fleet led by Robert Wennington challenges ships of the Hanseatic League.source
1454July 12 – Within the Duchy of Pomerania in Germany, the Hanseatic League town of Stralsund ends its resistance to the Pomeranian dukes and enters into a peace agreement.source
1468November 20 – The Hanseatic warship Hanneke Vrome capsizes and sinks off of the coast of Finland, killing its estimated 180 passengers and crew, along with a valuable cargo including 10,000 Rheingulden coins, equivalent to at least 34000 kg lb of gold. The ship had been sailing between the Hanseatic cities of Lübeck (in Germany) and Reval (now Tallinn, capital of Estonia) when it ran into a gale.source
1474February 28 – The Treaty of Utrecht puts an end to the Anglo-Hanseatic War, restoring the status quo that had existed before the war, with the Kingdom of England and the states of the Hanseatic League agreeing to respect each other's trading rights.source
1496February 24 – King Henry VII of England signs the commercial treaty Intercursus Magnus with Venice, Florence, and the cities of the Hanseatic League and the Netherlands.source

16th century

1534June 23 – Copenhagen opens its gates to Count Christopher of Oldenburg, leading the army of Lübeck (and the Hanseatic League), nominally in the interests of the deposed King Christian II of Denmark. The surrenders of Copenhagen and, a few days later, of Malmö represent the high point of the Count's War for the forces of the League. These victories presumably lead the Danish nobility to recognize Christian III as King on July 4.source
1535June 8 – Battle of Bornholm: Combined Swedish and Danish fleets defeat the Hanseatic navy.source
1552February 24 – The privileges of the Hanseatic League are abolished in England.source
1566March – The Hanseatic city of Lübeck launches the galleon Adler von Lübeck, probably the largest ship in the world at this time.source

17th century

1669July – The Hanseatic League, after 400 years of operation, holds its last official meeting, taking place at the city of Lübeck. At its height, the economic alliance of German cities had 180 members; only nine (Lübeck, Hamburg, Bremen, Danzig, Braunschweig, Cologne, Hildesheim, Osnabrück and Rostock) are represented for the final gathering. The final series of meetings had started on May 29.source