Periods in example sentence

According to the American sociologist James C. Davies’s so-called J-curve theory, revolutions – such as the Russian Revolution of 1917 and Egypt’s revolution of 1952 – occur when periods of prolonged economic and social development are sharply and suddenly reversed.

More example sentences with word periods

There are a lot of correlates between the two forms of music, I think, in different time periods, in lot of ways, rap serves the same social function that jazz used to serve.

We think, by studying how the sounds are learned, we'll have a model for the rest of language, and perhaps for critical periods that may exist in childhood for social, emotional and cognitive development.

And the reason we should take that possibility seriously is that we know from the geologic history of the Earth that there were periods in its history when sea level rose much more quickly than today.

New models that extend long periods of time are hard.

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