One month ago, a 22-year-old woman was pronounced dead after she had been detained by Iran's notorious morality police for alleged violations of the Islamic republic's strict dress code for women.
Mahsa Amini's death in hospital on September 16, three days after her arrest, sparked the biggest protests in Iran in years.
Young women and girls have defiantly removed their Islamic headscarves, or hijabs, in standoffs with the security forces that have left dozens dead, according to human rights groups.
Here is a timeline of the events: