History of Sweden between 540 AD - 789 AD
In Swedish prehistory, the Vendel era (550-793) is the name given to a part of the Germanic Iron Age (or, more generally, the Migration Period). The migrations and the upheaval in Central Europe had lessened somewhat, and two power regions had appeared in Europe: the Merovingian kingdom and the Slavic princedoms in Eastern Europe and the Balkans. A third power, the Catholic Church, had begun to expand its influence. In Scandinavia, the Germanic clan society was still very much alive. In Uppland in what today is the east-central part of Sweden, Old Uppsala was probably the centre of religious and political life. It had both a well-known sacred grove and great Royal Mounds.
There were lively contacts with Central Europe, and the Scandinavians continued to export iron, fur and slaves; in return they acquired art and innovations, such as the stirrup. The finds in Vendel and Valsgärde show that Uppland was an important and powerful area consistent with the sagas' account of a Swedish kingdom. Some of the riches were probably acquired through the control of mining districts and the production of iron. The rulers had troops of mounted elite warriors with costly armour. Graves of mounted warriors have been found with stirrups and saddle ornaments of birds of prey in gilded bronze with encrusted garnets. These mounted elite warriors are mentioned in the work of the 6th century Goth scholar Jordanes, who wrote that the Swedes had the best horses beside the Thuringians. They also echo much later in the Norse sagas, where king Adils is always described as fighting on horseback (both against Áli and Hrólf Kraki). Snorri Sturluson wrote that Adils had the best horses of his days. Games were popular, as is shown in finds of tafl games, including pawns and dice. This is the time when Swedish expeditions start to explore the waterways of what was to become Russia.
From its origin as a small stronghold built by the ancient Illyrian tribe Dalmatae, becoming a royal castle that was the seat of many Croatian kings, to its final development as a large fortress during the Ottoman wars in Europe, Klis Fortress has guarded the frontier, being lost and re-conquered several times. Due to its location on a pass that separates the mountains Mosor and Kozjak, the fortress served as a major source of defense in Dalmatia, especially against the Ottoman advance, and has been a key crossroad between the Mediterranean belt and the Balkan rear.
Since Duke Mislav of the Duchy of Croatia made Klis Fortress the seat of his throne in the middle of the 9th century, the fortress served as the seat of many Croatia"s rulers. The reign of his successor, Duke Trpimir I, the founder of the Croatian royal House of Trpimirović, is significant for spreading Christianity in the Duchy of Croatia. He largely expanded the Klis Fortress, and in Rižinice, in the valley under the fortress, he built a church and the first Benedictine monastery in Croatia. During the reign of the first Croatian king, Tomislav, Klis and Biograd na Moru were his chief residences.
In March 1242 at Klis Fortress, Tatars who were a constituent segment of the Mongol army under the leadership of Kadan suffered a major defeat while in pursuit of the Hungarian army led by King Béla IV. After their defeat by Croatian forces, the Mongols retreated, and Béla IV rewarded many Croatian towns and nobles with 'substantial riches'. During the Late Middle Ages, the fortress was governed by Croatian nobility, amongst whom Paul I Šubić of Bribir was the most significant. During his reign, the House of Šubić controlled most of modern-day Croatia and Bosnia. Excluding the brief possession by the forces of Bosnian King, Tvrtko I, the fortress remained in Hungaro-Croatian hands for the next several hundred years, until the 16th century.
Klis Fortress is probably best known for its defense against the Ottoman invasion of Europe in the early 16th century. Croatian captain Petar Kružić led the defense of the fortress against a Turkish invasion and siege that lasted for more than two and a half decades. During this defense, as Kružić and his soldiers fought without allies against the Turks, the military faction of Uskoks was formed, which later became famous as an elite Croatian militant sect. Ultimately, the defenders were defeated and the fortress was occupied by the Ottomans in 1537. After more than a century under Ottoman rule, in 1669, Klis Fortress was besieged and seized by the Republic of Venice, thus moving the border between Christian and Muslim Europe further east and helping to contribute to the decline of the Ottoman Empire. The Venetians restored and enlarged the fortress, but it was taken by the Austrians after Napoleon extinguished the republic itself in 1797. Today, Klis Fortress contains a museum where visitors to this historic military structure can see an array of arms, armor, and traditional uniforms.