How many persians were at the battle of thermopylae

The pass at Thermopylae was thus opened to the Persian army, according to Herodotus, at the cost to the Persians of up to 20,000 fatalities.

Herodotus claims in his book of the Persian Wars that about 5,283,220 Persian soldiers fought.

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

a causal relation between two events exists if the occurrence of the first causes the other. the first event is called the cause and the second event is called the effect. a correlation between two variables does not imply causation.

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