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.
In the second usage, nationalism is a sentiment of loyalty toward the nation which is shared by people.[1] But, like most modern students of international relations, they argue that nationalism has been one of the most important forces shaping international politics. And not always for the better.