Related articles:
1901
Category:20th century
2000
Key terms:
world war
united states
soviet union
powerful
world war ii
vaccine
end of the century
conflicts
communism
automobile
bombings
million people
cold war
warming
abad
united kingdom
aids
world population
nuclear weapons
relativity
famine
global warming
around the world
petroleum
hepatitis
transformed
fossil
inventions
unprecedented
united nations
antibiotics
two world wars
solar system
became more
civil war
drastically
life expectancy
epidemic
human rights
einstein
middle east
eastern europe
genres
popular music
half of the century
after world war
fossil fuel
overpopulation
other diseases
hiroshima and nagasaki
geopolitical
great depression
influenza
many nations
culminating
trench
dissolved
ottoman empire
genocide
western europe
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