Yes this is true what is ur point.
Answer: After three days of holding their own against the Persian king Xerxes I and his vast southward-advancing army, the Greeks were betrayed, and the Persians were able to outflank them. Sending the main army in retreat, Leonidas and a small contingent remained behind to resist the advance and were defeated.
A historian creates a graph of the economic strength of various empires throughout history. (apex)
Holocaust cause the death of many jews.
The U.S is one of the reasons why we discovered the concentration camps