Spontaneous Osteonecrosis of the Knee - SONK. Also known as: Ahlbackâs disease. A condition of unknown aetiology characterized by the development of an area of osteonecrosis on the weight-bearing surface of the medial femoral condyle.
Friday 8 November 2013 09.16 EST First published on Friday 8 November 2013 09.16 EST. When 33 Chilean miners were hauled to the surface after 69 days trapped in a collapsed copper mine in 2010, more than a billion people around the world tuned in to watch as the rescue was broadcast live on television.
The Spanish had ruled Chile since the middle of the Sixteenth Centur. This public holiday is always celebrated in Chile on 18 September and marks the date when the Chilean people declared independence from Spain. It is Chile's National Day and along with Christmas, this period is the most important holiday time in the year in Chile. History of Chilean Independence Day On 18 September 1810, Chile broke from Spanish rule, declaring their independence.