In the late 18th century and early 19th century, the ideology of nationalism began to rise. Nationalism was described as a person identifying themselves with a certain nation, their home country. Previously this was known as the right to fight off invaders to protect ones land or to expand it, but it has changed to nationalism. Then with the rise of nationalism, patriotism also began to emerge. This was having pride and loyalty to ones nation. Also during this time, democratization increased, and with this there was an increase in nationalism and patriotism. In that as politicians emerged, they pronounced patriotism. Also language nationalism began to rise, where nations wanted their citizens to read, write, and speak in their own language which would set them apart from other nations.
What I found interesting is how these nations were forming. It's kind of like they expanded their lands and now they need to make it official and call it a nation so that there wouldn't be any invaders taking their land. They invented languages to further pronounce the land as a nation. I wonder if the countries that had parts of their land taken away had a strong impression for nationalism. I wonder if they didn't want to label their plot of land as a nation until they took back or expanded their territory.