The Korean War, primarily because the US Korean War veterans THEMSELVES preferred to talk about WWII instead (as most were WWII vets, WWII was separated by only 5 years from the Korean War). WWII OVERSHADOWED Korea.
The 20th century was an age of war because during that time period there were many and great wars that were faught. Also many people were killed during the wars that occured during the 20th century.
If I have an inner conflict about what to do with my life, I could easily forget that conflict as my life changes. If I have a conflict with a friend, I might forget all about it after a while. But if my friend dies before we resolve the conflict, that could become a problem. Conflicts are more easily forgotten unless another more serious issue occurs, People rarely forget their grief. If they try to bury it, it will usually come up later.
People who mine conflict diamonds can be killed for a whim; conflict diamonds fund mayhem, war, civil unrest and other inhumane activities.
Mt. Vesuvius
about 200,000
they killed people and then sold them for sugar
rubbish, people killed people died people be people people people
a king farted and killed people then they wondered why it killed them
3 Million
An estimated 300 million people or more died from smallpox in the 20th century.
Tobacco smoking killed 100 million people worldwide in the 20th century and could kill 1 billion people around the world in the 21st century, a WHO Report warned.
In the 21st century tornadoes killed at least 1,637 people. 1,227 of them were in the U.S. It is likely that some deaths in other countries were not documented.