In 1918, the Spanish Flu killed 2.5-5% of the world population (Wikipedia)
WW1 which ended in 1918, cost 0.75-2% of the world population. (Wikipedia)
"Awake" 05/22/2003 p.5 "....The Black Death in just six years wiped out a third OR MORE of the population during the Middle Ages"
33% looks like more than 0.75% or 2.5% to me........Of course I took Calc, Trig and Physics while getting my MSCE so maybe I'm confused....
Of course, you are not looking at it in the right context.
The reason the War and the Flu were so bad was that they killed so many White people! A person could no longer rely on being middle or upperclass white for protection against the more unpleasant things in life, such as epidemic, or horrors of war, which used to be conveniently the problem of the "proles" or the "darkies".
I remember in the TV series "Black Adder Goes Forth", in which the main character complains that War isn't what it used to be, when the only enemy you fought was armed with nothing more dangerous than sharpened pieces of fruit and dried grass. Now, he actually risked being killed himself.
I think that the people who think that life prior to 1914 being some kind of "Golden Age" before everything went to hell are wearing the rosiest of glasses. They forget all about the corruption of the post Civil War business and government, the racism, the poverty, etc. Life was pretty good if you were white and upper middle class or higher, otherwise, you were a laborer earning a nickel a day, a servant, a field hand or coal miner working for the company store (another kind of slavery), or living in the slums. The streets were not safe, diseases like pox could kill or cripple you, you might not live long enough to make it your second birthday, and top of the line creature comforts of 1890 would not qualify as good enough for a camping excursion today. Today, our houses are warmer (or cooler), our clothes smell better, our teeth are whiter, our standard of living (at least in the West) is much higher, and our mortality rates are lower than the best conditions of the Summer of 1914, when everything was supposedly wonderful.
Anyway, that's my two cents....