Reformers have tried to modernise Iran for decades but have failed mainly due to the country's powerful theocracy. And then there are those who want to overthrow the regime altogether.
11 activists have died in prison since Iran's mass protests were crushed in January. Now, some detainees' families are keeping a daily vigil outside jails. It's a sign that unrest in Iran is not over.
The nationwide anti-government protests in Iran could have significant implications in Syria and beyond.
The Baha'i faith originated in Iran and today has 100,000 communities across the globe, including the United States. Here is their history.