The 30 biggest population shifts in recent history

Pilgrims hold umbrellas during Mass in Romania, 2019.

When the global population hit 5 billion in 1987, the United Nations started World Population Day on July 11 to spotlight the growing number of people on the planet.

Today, there are 7.7 billion people in the world, and with refugee crises, wars, droughts, and changing work opportunities, populations in some countries are booming while read more >>>

Source : BusinessInsider.Com

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