Here is a summary of the main political developments since Iran’s June 12 presidential election:

June 13 – Hardline incumbent Mahmoud Ahmadinejad wins election with nearly 63 percent of vote, authorities say. Reformist challenger Mirhossein Mousavi has 34 percent. Mousavi calls result a “dangerous charade.” Thousands of protesters clash with police.

June 14 – Mousavi asks Guardian Council to annul election.

June 15 – Seven killed during march by Mousavi supporters in Tehran, state media says. Protests break out in other cities.

June 16 – Thousands of pro-Mousavi demonstrators march in northern Tehran.

– Authorities ban foreign journalists from leaving their offices to cover street protests.

June 17 – Ahmadinejad defends legitimacy of the vote in a cabinet meeting saying it “posed a great challenge to the West’s democracy,” Mehr news agency reports.

June 18 – Thousands of Mousavi’s backers rally in Tehran to mourn those killed in the mass protests.

June 19 – Supreme Leader Ayatollah Ali Khamenei says protest leaders will be responsible for any bloodshed if rallies continue over the election, which he says Ahmadinejad won fairly by 11 million votes.

June 20 – Riot police are deployed to disperse groups of several hundred Iranians who gathered across Tehran.

– A suicide bomber blows himself up near the shrine of Iran’s revolutionary founder Ayatollah Ruhollah Khomeini in Tehran, Iran’s semi-official Mehr news agency reports.

– State television says 450 people are detained during clashes in Tehran in which 10 people are killed, including Neda Agha-Soltan. Graphic footage of her death is seen around the world on the Internet.

June 22 – Hardline Revolutionary Guards say they will “firmly confront in a revolutionary way rioters and those who violate the law.” Police break up a protest in Tehran.

June 23 – Guardian Council again rules out annulment of the poll, saying there have been no major polling irregularities. Riot police and Basij militia in Tehran ward off mass protests.

– U.S. President Barack Obama says the United States is “appalled and outraged” by Iran’s crackdown.

– Britain expels two Iranian diplomats after two of its own are expelled from Iran.