Ludwig Van Beethoven, born in Bonn in 1770, was one of the world's greatest composers. He began to lose his hearing at the age of 26, and by 1823 he was completely deaf. Beethoven never heard his nine symphonies or piano concertos, or any of his other compositions during the last ten years of his life.

Earth's day is 23 hour 56 minute 4.09 second (time for rotation on its own axis).

Jules Verne, the inventor of the scientific novel, known for his Around the world in 80 Days, never travelled but lived a quiet life at Amiens, France.

Largest lake in the world is Caspian sea (Asia - Europe).