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        The empire was already on the edge of the collapse, there were several reasons of the fall: political crisis, economic weakness, military problems, rise of Christianity, invasion of Germanic tribes. It represents the end of the ancient times and the beginning of the middle ages. The Roman empire were a huge unified territory. With the end of it, the barbarian tribes took over the territories, making their own kingdoms (Kingdom of Vandals/Ostrogoths/Gepids). Christian church got more power. - 
  
  
        The birth of islam is an important date, because it defined the history and culture of the Arabian plate and on conquered territories. One of the most important religions today aswell. - 
  
  
        After Pepin, the Short helped the pope, when he was under attack, he gave conquered territories to the pope. For this act, the pope recognised Pepin as a king. From this date the Chatolic Church began to gain more power. - 
  
  
        Charles, the Great got first the title, the emperor of the Holy Roman Empire. His main goal was to renew the Roman Empire. It existed till the early 1800s. The territory layed between the Atlantic ocean and the Danube. - 
  
  
        The split of the Chatholic church occured from various reasons. Religious and political disagreements and conflicts, the patriarchs in Constantinople and the Pope in Rome was also in opposition. These lead to the divide of the church, on the eastern part the church became orthodox and on the west it remained Chatholic. - 
  
  
        Lead by William, the Conqueror, the Normans from France invaded the territory of England. It meant the end of the Anglo-Saxon period and the beginning of the French influence. - 
  
  
        The Chatolic church first invited the people to fight for the Holy Land. The church wanted to conquer Jerusalem and its surounding area to return them to their "rightfull owners" from the Muslims. Later there were more crusades to popularise christianity and to defeat the church's enemies. - 
  
  It occured from the English claim of the French throne. The war lasted for 116 years with several truces. This war was the longest in the European history. The French and the English still have a delicate relationship.
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  It is still the most deadly plague in history, killing around 75-200 million people, the 20%-40% of the world's population at that time.
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  Historians say that the middle ages ended between the fall of Constantinople and the discovery of America. Some sources determine the fall of byzantine empire were the end of mediavel times in europe and for the world, when Colombus discovered the new continent. It may not occur from one single event.