Complex sentence: The 50 Greatest Contributors in Euroleague History were chosen on 3 February 2008 in Madrid, Spain on the occasion of the fiftieth anniversary since the founding of the FIBA European Champions Cup, officially recognized as the predecessor to today's Euroleague.
Split into simpler sentences: The 50 Greatest Contributors in Euroleague History were chosen on February 3,2008 in Madrid, Spain. The occasion was the fiftieth anniversary since the founding of the FIBA European Champions Cup, officially recognized as the predecessor to today's Euroleague.