There were many factors of this.
1. The Vikings attack
2.The Magyars attack
3.The Muslims attack
4.The Black Death kills many people
5.Corruption in the government
The Crusades brought much riches to Western Europe and created a sense of religious unity.
decline in religious unity and in the power of the Catholic Church
Eastern Europe does not seek anything from Western Europe other than political unity and aid.
Unity and stability.
decline in religious unity and in the power of the Catholic Church
The civilisation of the Germanic peoples.
The civilisation of the Germanic peoples.
The Catholic Church and the Latin language helped united western Europe after the Roman Empire collapsed.
The Military
The Protestant Reformation led to less political and religious unity in Europe, as it fragmented the Catholic Church's influence and gave rise to various Protestant denominations. This division fostered conflicts, such as the Thirty Years' War, and encouraged the rise of nation-states that asserted their independence from papal authority. Consequently, Europe became increasingly characterized by religious pluralism and political fragmentation rather than cohesion.
Unity Bank ended in 1978.
Unity Bank of Canada ended in 1979.