Because they trained at the age of 7 and when they were babys they threw the non-strong ones to die.
Spartans viewed other Greeks as inferior and lacking in the rigorous training and discipline that they valued. They considered themselves to be the most courageous and skilled warriors in Greece.
They did both. Spartans were fierce warriors. They challenged Athens most of the time to see which was best. Spartans trained warriors, to fight. They were one of the most ferocious city's in Greece, but they had to train the warriors to fight.
The Spartans trained their people, from their very birth to be warriors; be it male or female.
Spartans Or Hoplite Warriors
The Spartans are to being warriors as Americans are to being fat and lazy
The 300 Spartans
They did.
Not at all.
Practice
By practicing
The city of Sparta, in Greece.
yes, they were very well read, educated and fierce warriors.