400

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By Place

Western Roman Empire

• Italy
  Italy
  
  Italy , officially the Italian Republic , is a country located on the Italian Peninsula in Southern Europe and on the two largest islands in the Mediterranean Sea, Sicily and Sardinia....
   is first invaded by Alaric
  Alaric I
  
  Alaric I , was likely born about 370 on an Peuce Island at the mouth of the Danube. He was king of the Visigoths from 395–410 and the first Germanic peoples leader to take the city of Rome....
   (probable date).
• The Vandals start their westward trek from Dacia
  Dacia
  
  In ancient geography, Dacia was the land of the Dacians. It was named by the ancient Greeks "Getae". Dacia was a large district of East-Central Europe, bounded on the north by the Carpathian Mountains, on the south by the Danube, on the west by the Tisia or Tisza, on the east by the Tyras or Dniester, now in eastern Moldova....
   and Hungary
  Hungary
  
  Hungary , officially in English the Republic of Hungary , is a landlocked country in the Carpathian Basin of Central Europe, bordered by Austria, Slovakia, Ukraine, Romania, Serbia, Croatia, and Slovenia....
   (approximate date).

Europe

• The Franks
  Franks
  
  The Franks or Frankish people were a West Germanic ethnic group first identified in the 3rd century as living north and east of the Lower Rhine River....
   establish themselves in Northern Holland
  Holland
  
  Holland is a name in common usage given to two regions in the western part of Netherlands. The name 'Holland' is also often mistakenly used to refer to the whole of The Netherlands....
  .
• While taking refuge along the Danube
  Danube
  
  The Danube is the longest river in the European Union and Europe's second longest river after the Volga.The river originates in the Black Forest in Germany as the much smaller Brigach and Breg River rivers which join at the eponymously named German town Donaueschingen, after which it is known as the Danube and flows eastwards for a distance...
  , Gainas
  Gainas
  
  Gainas was an ambitious Goths leader who served the Eastern Roman Empire during the reigns of Theodosius I and Arcadius.Gainas began his military career as a common foot-soldier, but later commanded the barbarian contingent of Theodosius' army against the usurper Eugenius in 394....
   and his Goths
  Goths
  
  The Goths were East Germanic tribes who, in the 3rd and 4th centuries, invasion the Roman Empire and later adopted Arian Christianity. In the 5th and 6th centuries, divided as the Visigoths and the Ostrogoths, they established powerful successor-states of the Roman Empire in the Iberian peninsula and Italy....
   are attacked by the Huns
  Huns
  
  The Huns were a confederation of Central Asian Eurasian nomads or semi-nomads, who had established an empire in Eurasia. The Huns may have stimulated the Migration Period, a contributing factor in the collapse of the Roman Empire....
  , who kill him and his army. Gainas' head is sent as a gift to Constantinople
  Constantinople
  
  Constantinople was the empire capital of the Roman Empire , the Byzantine Empire , the Latin Empire , and the Ottoman Empire . Strategically located between the Golden Horn and the Sea of Marmara at the point where Europe meets Asia, Byzantine Constantinople had been the capital of a Christendom empire, successor to ancient ancient Greece...
   by the Hun chieftain Uldin
  Uldin
  
  Uldin was one of the primary chieftains of the Huns located beyond the Danube during the reigns of Arcadius and Theodosius II . He did not, however have total control of the Hunnic people....
  .

Africa

• Construction at Great Zimbabwe
  Great Zimbabwe
  
  The Great Zimbabwe, or "stone buildings", is the name given to stone ruins spread out over a 722 ha area within the modern-day country of Zimbabwe, which itself is named after the ruins....
   begins (approximate date).

Asia

• Chrysanthemum
  Chrysanthemum
  
  Chrysanthemums, often called 'mums', are a genus of about 30 species of perennial plant flowering plants in the family Asteraceae, native to Asia and northeastern Europe....
  s are introduced to Japan
  Japan
  
  Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
   (approximate date).

By Topic

Religion

• The mausoleum of Galerius
  Galerius
  
  Galerius Maximianus , formally Gaius Galerius Valerius Maximianus was Roman Emperor from 305 to 311....
   in Salonica is converted into a church.