Schwann: Discovered that all animals are made up of cells 1. Virchow: Discovered that cells only come from other cells 1. His statement was later debunked. Cells1 : Definition. noun. (Science: Cell Biology). 1.
Nationalism as a cause of World War I The British Empire was an important source of nationalism Nationalism is an extreme form of patriotism and loyalty to oneâs country.
  Nationalism is important towards the world due to the fact that without, no countries would have citizens that would be patriotic towards their country. This would mean â¦ that nobody would support their country, and in the end, their would be less work being done due to the lack of motivation.