We hear about the half-clay, half-grass exhibition match between Rafael Nadal and Roger Federer. Argentinean creative entrepreneur and tennis fan Pablo del Campo tells Uma Doraiswamy how he made the iconic court possible in May 2000. Fiona Skille, professor of Sports History at Glasgow Caledonian University, explains the history of sport exhibition matches. In 1974, Greece held a referendum to decide the future of the country’s monarchy, and whether Constantine II would remain their king. In December 1974 4.5million million people went to the polls to cast their vote. The result was two to one in favour of a republic. Jane Wilkinson looks through the BBC archives to find out more. Next, a mountain massacre in base camp of the Nanga Parbat mountain in the Gilgit-Baltistan region of Pakistan killed 19 people. . Polish climber Aleksandra Dzik, aged 30, was on the mountain that night, at camp two, and speaks to Megan Jones. Plus, India’s coal-mine rescue. On 16 November 1989, mining engineer Jaswant Singh Gill saved 65 miners from the Mahabir Coal Mine, in India. The miners, who had been trapped for three days after a flood, were winched out one by one using a tiny, steel capsule. Rachel Naylor speaks to Jaswant's son, Sarpreet Singh Gill. In 2013, a six-year-old from Argentina became one of the youngest people in the world to legally have their gender changed on official documents through self-declaration. Gabriela Mansilla reveals, the fight for recognition was not easy for her daughter Luana. (Photo: 'The Battle of the Surfaces' at The Palma Arena on May 2, 2007 in Mallorca. Credit: Clive Brunskill/Getty Images)