History of Latvia between 800 AD - 1149
During the Viking Age the Scandinavian expansion into the Eastern Baltic increased, and their influence reached as far as the Volga and down it to the Caspian Sea, as well as to the Black Sea and Byzantium. The territory known today as Latvia became famous as a trading crossroads. The famous "route from the Vikings to the Greeks" mentioned in ancient chronicles stretched from Scandinavia through Latvian territory via the Daugava River to the ancient Rus and Byzantine Empire. Vikings started to establish colonies for example in East Prussia, near Elbing and another in Latvia, near Grobina (formerly Seeborg).
This expansion ended with the adoption of the Christian civilization. The Vikings who had become the rulers and kings of Russia, became slavonised and started organizing the Russians for unceasing attacks on the Baltic lands. On the whole, however, this combined Viking-Russian aggression was unsuccessful. The Baltic peoples had learnt from the Scandinavians better use of weapons and military and political organisation. For short periods the Viking-led Russians succeeded in establishing a tributary overlordship, but they were soon driven away and independence was re-established. Thus, the Chronicles tell us that in 1106 the Russians of Polotzk organised an attack down the Daugava against Zemgale (Semigallia — a Latvian Kingdom), but lost 9,000 men and were completely beaten. However, in spite of the occasional restless times and periodic wars, the Viking period gave the Baltic peoples many valuable contacts and stimuli. Large deposits of Arabic and Anglo-Saxon coins have been found, dating from that period. This clearly shows that the cultural tentacles of the Baltic peoples went as far South as the Arabic Caliphates and Iran and so far North-West that they had gained an insight into the Anglo-Saxon world.
Baltic peoples already had their own monetary system (the so-called oserings) and their own system of weights and measures. They had partially adopted the Orthodox Christianity. They had their own penal codes, their own kings, their own states, their own national administration and taxation, their own strategically arranged lines of fortified castles. It is quite clear, therefore, that the lands inhabited by the Baltic nations were a very pronounced independent cultural area. On the other hand, the Slav territories, which in present days encircle the Baltic lands from the East and from the South, have always been much poorer in material culture and their civilization much more monotonous. In the borderlands the Slays make use of many elements that have been borrowed from the Balts. This is particularly noticeable in the ancient Balt territory, White Ruthenia.
The Porta Nigra (Latin for black gate) is the largest Roman city gate north of the Alps. It is designated as part of the Roman Monuments, Cathedral of St. Peter and Church of Our Lady in Trier UNESCO World Heritage Site. The name Porta Nigra originated in the Middle Ages due to the darkened colour of its stone; the original Roman name has not been preserved. Locals commonly refer to the Porta Nigra simply as Porta.
The Porta Nigra was built in grey sandstone between 186 and 200 AD. The original gate consisted of two four-storied towers, projecting as near semicircles on the outer side. A narrow courtyard separated the two gate openings on either side. For unknown reasons, however, the construction of the gate remained unfinished. For example, the stones at the northern (outer) side of the gate were never abraded, and the protruding stones would have made it impossible to install movable gates. Nonetheless, the gate was used for several centuries until the end of the Roman era in Trier.
In Roman times, the Porta Nigra was part of a system of four city gates, one of which stood at each side of the roughly rectangular Roman city. The Porta Nigra guarded the northern entry to the Roman city, while the Porta Alba (White Gate) was built in the east, the Porta Media (Middle Gate) in the south, and the Porta Inclyta (Famous Gate) in the west, next to the Roman bridge across the Moselle. The gates stood at the ends of the two main streets of the Roman Trier, one of which led north-south and the other east-west. Of these gates, only the Porta Nigra still exists today.
In the early Middle Ages the Roman city gates were no longer used for their original function and their stones were taken and reused for other buildings. Also iron and lead braces were broken out of the walls of the Porta Nigra for reuse. Traces of this destruction are still clearly visible on the north side of the gate.
After 1028, the Greek monk Simeon lived as a hermit in the ruins of the Porta Nigra. After his death (1035) and sanctification, the Simeonstift monastery was built next to the Porta Nigra to honor him. Saving it from further destruction, the Porta Nigra was transformed into a church: The inner court of the gate was roofed and intermediate ceilings were inserted. The two middle storeys of the former gate were converted into church naves: the upper storey being for the monks and the lower storey for the general public. The ground floor with the large gates was sealed, and a large outside staircase was constructed alongside the south side (the town side) of the gate, up to the lower storey of the church. A small staircase led further up to the upper storey. The church rooms were accessible through former windows of the western tower of the Porta Nigra that were enlarged to become entrance doors (still visible today). The top floor of the western tower was used as church tower, the eastern tower was leveled, and an apse added at its east side. An additional gate - the much smaller Simeon Gate - was built adjacent to the East side of the Porta Nigra and served as a city gate in medieval times.
In 1802 Napoleon Bonaparte dissolved the church in the Porta Nigra and the monastery beside it, along with the vast majority of Trier"s numerous churches and monasteries. On his visit to Trier in 1804, Napoleon ordered that the Porta Nigra be converted back to its Roman form. Only the apse was kept; but the eastern tower was not rebuilt to its original height. Local legend has it that Napoleon originally wanted to completely tear down the church, but locals convinced him that the church had actually been a Gaulish festival hall before being turned into a church. Another version of the story is that they told him about its Roman origins, persuading him to convert the gate back to its original form.
In 1986 the Porta Nigra was designated a World Heritage Site, along with other Roman monuments in Trier and its surroundings. The modern appearance of the Porta Nigra goes back almost unchanged to the reconstruction ordered by Napoleon. At the south side of the Porta Nigra, remains of Roman columns line the last 100 m of the street leading to the gate. Positioned where they had stood in Roman times, they give a slight impression of the aspect of the original Roman street that was lined with colonnades. The Porta Nigra, including the upper floors, is open to visitors.