I read from dolce vita to dollar diplomacy.

The doldrums are about 5 degrees North and South of the equator.

https://oceanservice.noaa.gov/facts/doldrums.html

Dolichocephaly in humans is basically when the head goes further back than average. 

https://en.wikipedia.org/wiki/Dolichocephaly

Around 30 economies in the world use currency called "dollar". 

https://en.wikipedia.org/wiki/Dollar

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