The answer to your question is false. China was the only country with an open door policy between America.
Answer:
Indus civilization, also called Indus valley civilization or Harappan civilization, the earliest known urban culture of the Indian subcontinent. The nuclear dates of the civilization appear to be about 2500–1700 bce, though the southern sites may have lasted later into the 2nd millennium bce.
Sparta was the city-state that gave women citizenship, the women of Athens had their own social class, it went citizens, women, free/ non citizens, and than slaves.