Women compete for the first time

Sarah Attar of Saudi Arabia is all smiles as she enters Olympic Stadium during the opening ceremony on Friday night in London.   (Cameron Spencer / Getty Images)

Aia Mohamed of Qatar serves to Canada’s Mo Zhang during a preliminary round of women’s table tennis.  (Bernd Thissen / EPA)

Qatari athlete Noor Hussain al-Maliki, 17, poses during a Diamond League track meet in Doha, Qatar.   (Osama Faisal / Associated Press)

Brunei’s flagbearer Maziah Mahusin leads her country’s delegation into Olympic Stadium during the opening ceremony on Friday night.  (Olivier Morin / AFP / Getty Images)

Wodjan Shaherkani (top right during the opening ceremony) might withdraw from the Olympic Game if not allowed by the IOC to wear a hijab.   (Jonathan Brady / EPA)