In the news

• The 41st Chess Olympiad concludes with China winning the open section and Russia winning the women's section of the tournament.
• Mathematicians Artur Avila, Manjul Bhargava, Martin Hairer, and Maryam Mirzakhani are awarded the Fields Medal; Mirzakhani (pictured) is its first female recipient.
• Actor and comedian Robin Williams dies at the age of 63.
• Recep Tayyip Erdoğan wins Turkey's first direct presidential election.
• Sepahan Airlines Flight 5915 crashes near Mehrabad International Airport in Tehran, Iran, killing 39 people.
• Khmer Rouge leaders Nuon Chea and Khieu Samphan are found guilty of crimes against humanity by a UN-backed tribunal.