According to the text of the novel? Or according to another source?
Over the course of the novel, we see huge changes for the women of Iran. They are forced to wear the veil, girls and boys are separated in school, people protest against the Shah, and the Shah leaves the country. In addition, we see the revolutionaries heralded as heroes, only to quickly become enemies of the republic. People are arrested, Marjane's uncle is taken and executed on false charges, and the American embassy is attacked. As the war intensifies, bombings become a normal part of the day, food is scarce, and tempers are high. The rules become stricter and neighbors turn in neighbors.... there's no one left to trust. In the end, Marjane is sent away. She is too modern, too well educated, and too rebellious to stay. She had to leave for her own safety.