How did the establishment of yellowstone national park change america?

With the establishment of yellow stone park, there was a huge damage done to the economy of the country but it would have the world's largest geysers.

Explanation:

The Yellowstone National park was established in 1872 in the United States of America. It got very famous because it had the most famous geyser and more than half of the geysers in the whole world and had great biodiversity in it. It also got famous because of it's huge size.

But because of the volcano in this national park, there is huge loss done to the economy of the country. If put in dollars, the loss triggered by the volcano is approximately $3 trillion which is around 16% of the GDP of the country.

There's multiple ways in which medieval Europe was affected by the three invasions, all coming from different sides, with different strategies and different goals.

The Viking invasion was both positive and negative, the positive being the accumulated knowledge about sea travel and ship construction, the negative being the occupation of important trading spots.

The Muslim invasion in general contributed to bigger unity among the Christian countries in Europe in order to preserve their religion and culture.

The Magyar and Szekely invasion contributed physical cultural separation of Central and Western Europe with the Balkans, but was positive for multiple smaller groups of people that were remnants of earlier empires, like the Avars, Huns, Kumans, who were incorporated into the new country and managed to survive on the European soil.